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AIBU?

Share your dilemmas and get honest opinions from other Mumsnetters.

What’s the worst thing you’ve ever done?

786 replies

shehardlysleeps · 20/04/2026 17:18

I’m in a reflective mood, and it’s got me thinking about something I did a few years ago which is probably the thing I’m most deeply ashamed of.

There was a coworker who really rubbed me up the wrong way. I was very unhappy at the time, and going through an awful time personally. She would make snide comments about me, do things with my family members (who were colleagues too) which really got my back up, I felt like she judged me harshly and was pretty rude. Along with another colleague they made three or four very nasty comments which still stick with me.

Instead of raising a grievance, which I should have done, I took to posting about her on another website (along the lines of Mumsnet), not realising she used it too. She saw the posts and reported me, and I ended up facing a meeting with HR and a senior partner of the firm I was working in. It damaged my reputation within the firm forever and I ended up leaving after not being offered a promotion. I still feel ashamed of it now, nearly half a decade on, and feel like it’s tarred me forever.

Whats the worst thing you’ve ever done?

OP posts:
muggart · Yesterday 20:30

PILEALLTHEPILLSONTHEFLOOR · Yesterday 17:28

half asleep, declined by boyfriends request to get in bed with me the night he died of an overdose. been some years now but still feel lost and not sure how I can ever come back from that one.

really really REALLY not your fault Flowers

PILEALLTHEPILLSONTHEFLOOR · Yesterday 20:30

muggart · Yesterday 20:30

really really REALLY not your fault Flowers

I am the worlds worst girlfriend literally

Midnights68 · Yesterday 20:31

NewspaperTaxis · Yesterday 20:05

Not sure where I'm going with this but this sin is very mild compared to what local authorities get up to - they are totally corrupt and are meant to be; Private Eye's Rotten Boroughs deals with this. The smug tone of the confession grates, but some like social workers and safeguarding heads in local councils have a job for life anyway, and in Surrey they certainly don't deserve it. Training someone up for a job at the expense of others is not vastly different to promoting internally and putting out an ad for form's sake.

I agree. I think if the general public knew and understood the true scale of the corruption in local government, there would be outcry.

However, I think the problem is so bad that it can’t and won’t go on forever - a reckoning is coming. So I think that particular poster may be being a bit delusional about her daughter having a job for life and might have done better to help her get some marketable AI-proof skills.

VariantHela · Yesterday 21:17

I had a difficult childhood so I began stealing at a young age. People could also be very nasty to me so as a defence I always pushed to see how much worse ai could be back to them. Would always say things and lose friends..Just overall not a nice person and I have to live with that now that some people just think I'm nasty, but really deep down I'm not - I was just a lost and lonely kid.

I wish I treated my dog better.

ToffeePennie · Yesterday 21:35

A little thing I can admit to, and I find amusing, is to do with my husband on garden leave.
He had been informed he was on a verbal warning for refusing to do work which was both illegal and could have resulted in maiming, injury or deaths. (Think safety switches in a factory being removed - that kind of thing) He hadn’t had the appropriate training and was given a piece very different from the part he was asked to replace, refused to do it without the appropriate training or the directors signature on the work, meaning that if anything happened my husband would be liable for any jail time.
Naturally my husband refused and was given a verbal warning over the weekend. He fought it with his union rep on the Monday and got it removed. However, by the Tuesday, it was back and had been advanced to a written warning (although we never saw it) for insubordination.
Husband was seriously stressed, we have a new baby; he’s being told to do stuff he cannot do and commit to more hours and garden leave became his only proper option.
He found another job within 2 days, jumped ship and the day he left, I mailed a bag of elephant poo to the Managing Director.
We still know people who work there, apparently every year they hear about the MD getting something else from the random corporate client, opening at his desk and getting glitter bombed, covered in grass cuttings or getting a big bag of dicks to eat. One year I emailed him and sent a video of a cockroach with his name on being fed to a snake at a zoo. I send a different package every year on his birthday. This year will be a singing card that doesn’t stop even in water and if it’s ripped open…glitter and still singing. I’m asking for it to play “no more fucks to give” because he really hates swearing!
And no, he won’t recognise me from this post because he did this shit to so many employees!!

BrickBiscuit · Yesterday 21:49

@theworldisadarkplace My parent waited until I got back to their deathbed to die. However, my sibling waited until I had left for the night to die. So did my closest friend. I have heard many times of dying people seeming to want to spend time with their loved ones while they are present, and preferring to die when they have left. Often it is staff or a chaplain with them, sometimes nobody, but dying alone is a thing.
(edited to add: other parent died when everybody but one daughter had left the room)

Itsnotallaboutyoulikeyouthink · Yesterday 22:06

LapisBlue · 20/04/2026 17:44

I slept with two men on one day. On two separate occasions, four guys in total, as it were.

Yes similar… was at uni, I had a boyfriend and I was seeing someone else after getting to know him on a geog field trip . Slept with him and then a few hours later my boyfriend. Over twenty years later I have no regrets. What a time that was.

InOverMyHead84 · Yesterday 22:15

theworldisadarkplace · Yesterday 17:01

My mum was dying and I'd been at her bedside all day. I went to my DS's school play that evening instead of being with her and she died whilst I was at the play. I rationalised my decision by thinking that she was past the point of knowing anyone was there and that my son (who was around 7) would remember me not being there. But the truth is that I didn't want to go back into the hospital. The nurse told me she'd had someone with her as she passed, but I don't believe that. I think she died alone and I'll never forgive myself.

I've done other things such as cheating on partners and been a bit of a bully at various times of my life. However, I've worked on myself and moved on from these episodes (and apologised to those affected). But I don't think I can move on from my mum.

Can only empathise with this.

My Dad passed away 11 days ago. He had been in and out of hospital for the last 10 years, he finally no longer had the strength to hold on.

On the last day he was responsive, I told him I would call in after taking the family out for a day out, but it went on longer then expected, I was tired. Went in the day after. He was never able to respond again. No idea if he was aware, just horrified that my Dad's last memory might have been of me not coming in, when he was fading away, when I said I would.

And, to top it off. After getting the 'get here now' phone call, rushed to the hospital. Missed him by minutes. Got to his bed to realise he had passed even before the doctors.... He was alone when he died. Everything he did for me, and I wasn't there.

swingingbytheseat · Yesterday 22:26

Nollie · 20/04/2026 18:00

Ok, off to name change...

😹

MoonWoman69 · Yesterday 22:51

@InOverMyHead84 Oh sweetheart. I am so sorry for your loss. But please don't blame yourself. Sometimes our loved ones wait until we've left to pass. I've heard this a lot.

I did the same with my grandad. I desperately needed to get some shopping in. I'd been by his bedside since he went into hospital 5 days before and all that morning. I told him I was going for an hour, but I'd be back. Rushed and did the shopping, halfway back to the hospital, within the hour, I got a phone call from my gran to go straight to their house, as my grandad had passed away.
All I could say when I got to my grans was, if I hadn't gone shopping he wouldn't have been alone when he died.
Things happen for a reason and I truly believe they knew we loved them dearly and were pleased we devoted the time we did to spend with them.
Please don't be so hard on yourself. Sending hugs and strength at this difficult time 🤗❤️

Seabubbles · Yesterday 22:51

ERthree · Yesterday 14:54

Do not tell her. You will hurt her so much and you will feel even more guilt not less.

The very thought of it breaks my heart at how much my actions would hurt her. I have never and would never ever do this to anyone ever again and would never cheat on a partner. The rush of excitement rapidly fade when you realise the impact on others and it's so not worth it.

iamtryingtobecivil · Yesterday 23:22

Reading these is making me recall more, fights in school one in particular was bad. Stealing first lipstick and nail varnish as a teen Setting fire to someones belongings.

Reading about those having sex is making me wish I’d had more! (excluding sex as part of a betrayal)

vanillachoc · Today 00:44

thepariscrimefiles · Yesterday 17:13

This isn't an amusing anecdote about youthful indiscretions or people getting revenge on horrible people who really deserve it. It's sheer nepotism and corruption and I can't believe that staff who would have deserved the promotion have just accepted what you have done.

What’s that saying? The rich get richer…

No wonder the working class are at such a disadvantage. I’ve seen nepotism in my work with my own eyes and it’s absolutely infuriating. All you end up with is generations of entitled spoilt brats who think the world should be handed to them. Meanwhile honest people working their way up from nothing get shafted.

andthat · Today 00:53

ToffeePennie · Yesterday 21:35

A little thing I can admit to, and I find amusing, is to do with my husband on garden leave.
He had been informed he was on a verbal warning for refusing to do work which was both illegal and could have resulted in maiming, injury or deaths. (Think safety switches in a factory being removed - that kind of thing) He hadn’t had the appropriate training and was given a piece very different from the part he was asked to replace, refused to do it without the appropriate training or the directors signature on the work, meaning that if anything happened my husband would be liable for any jail time.
Naturally my husband refused and was given a verbal warning over the weekend. He fought it with his union rep on the Monday and got it removed. However, by the Tuesday, it was back and had been advanced to a written warning (although we never saw it) for insubordination.
Husband was seriously stressed, we have a new baby; he’s being told to do stuff he cannot do and commit to more hours and garden leave became his only proper option.
He found another job within 2 days, jumped ship and the day he left, I mailed a bag of elephant poo to the Managing Director.
We still know people who work there, apparently every year they hear about the MD getting something else from the random corporate client, opening at his desk and getting glitter bombed, covered in grass cuttings or getting a big bag of dicks to eat. One year I emailed him and sent a video of a cockroach with his name on being fed to a snake at a zoo. I send a different package every year on his birthday. This year will be a singing card that doesn’t stop even in water and if it’s ripped open…glitter and still singing. I’m asking for it to play “no more fucks to give” because he really hates swearing!
And no, he won’t recognise me from this post because he did this shit to so many employees!!

Wow… let it go! You’re giving this person way too much oxygen.. and also at risk of being done for harassment!

hellomylov3 · Today 03:18

Itmustbenice · Yesterday 16:44

Mine is quite serious. Changed me as a person forever. I kissed and cuddled etc with my really good friends partner just after she had given birth.

I was extremely drunk (no excuse) had terribly low self esteem and a history of promiscuity after being abused as a child. I just had no morals really. I had stolen regularly as a teenager and young adult too.

I was so traumatised by what I had done I completely pulled away from the friendship and moved away. Not only did I betray her but she must have been so hurt that I pretty much avoided her as much as possible from then on.

I still have nightmares she will contact me one day on social media to say she knows. This was 18 years ago. Maybe I should get some therapy.

Your poor friend was probably on here asking why she was ghosted by her friend after giving birth!

user1471497170 · Today 06:34

Elanol · 20/04/2026 17:56

I had a neighbour who slammed his front door. I jumped out of my skin every time. They are heavy fire doors and really loud. Sometimes the vibration ran across my floor.

I made numerous complaints to the management company but he didn't give a shit. Lockdown was awful, he was home all day and never went back to work. One day after 22 (yes 22 not a typo) slams I lost my shit.

I bought a huge pair of trainers in a charity shop so they looked worn. I put them outside my door. Suddenly he could close the door properly. Funny that....

It's a shame it took a threat of violence from the man who fits into those huge trainers to behave decently.

I think that was a very clever idea
Although you should have never been in that situation.

TheBeaTgoeson1 · Today 07:17

@ToffeePennieYou have problems.

ToffeePennie · Today 07:22

TheBeaTgoeson1 · Today 07:17

@ToffeePennieYou have problems.

I have said repeatedly I am in therapy, I don’t know how else to say it.

AttentionPlease · Today 07:29

ToffeePennie · Yesterday 21:35

A little thing I can admit to, and I find amusing, is to do with my husband on garden leave.
He had been informed he was on a verbal warning for refusing to do work which was both illegal and could have resulted in maiming, injury or deaths. (Think safety switches in a factory being removed - that kind of thing) He hadn’t had the appropriate training and was given a piece very different from the part he was asked to replace, refused to do it without the appropriate training or the directors signature on the work, meaning that if anything happened my husband would be liable for any jail time.
Naturally my husband refused and was given a verbal warning over the weekend. He fought it with his union rep on the Monday and got it removed. However, by the Tuesday, it was back and had been advanced to a written warning (although we never saw it) for insubordination.
Husband was seriously stressed, we have a new baby; he’s being told to do stuff he cannot do and commit to more hours and garden leave became his only proper option.
He found another job within 2 days, jumped ship and the day he left, I mailed a bag of elephant poo to the Managing Director.
We still know people who work there, apparently every year they hear about the MD getting something else from the random corporate client, opening at his desk and getting glitter bombed, covered in grass cuttings or getting a big bag of dicks to eat. One year I emailed him and sent a video of a cockroach with his name on being fed to a snake at a zoo. I send a different package every year on his birthday. This year will be a singing card that doesn’t stop even in water and if it’s ripped open…glitter and still singing. I’m asking for it to play “no more fucks to give” because he really hates swearing!
And no, he won’t recognise me from this post because he did this shit to so many employees!!

You’re misusing the term ‘garden(ing) leave’.

Tredadt · Today 07:39

@x2boys @cheekynamechang3 @ThatCyanCat @Momlife86 @CoffeeCantata @Jellybelly80 @calanaiscailleach @UnctuousUnicorns @mjf981 @365RubyRed @Dragonscaledaisy @ChiliFiend @Allseeingallknowing @Jellybelly80 @Hernameisdeborah
@Differentforgirls @ComfyKnickers @Livpool @Ihateboris @Newyearawaits @ainsleysanob @BluebelllsRosesDaffodills odills @Yeseyeam @thepariscrimefiles @vanillachoc

Wow, I'm shocked at the utter vitriol and wishes and hopes my daughter fails. To clarify a few things. Firstly this is absolutely true and like someone pointed out, nepotism isn't illegal. Someone even mentioned that it's common in the NHS too. I did nothing wrong. Yes, I trained my daughter up and withheld training from other staff. However, my daughter is very bright. She got a first at university. With a little help from me, she picked it all up really quickly and is doing really well in the role. She isn't lazy or a failure.

When she came here after uni as a temp, I didn't create a master plan about this. I didn't even know about the job until a few months after she started. She was really struggling to find a job. As mentioned previously, she's shy and lacks confidence. She struggled to fit in at secondary school and although uni was a lot better, it had it's own issues. She really struggles with her communication skills. The team are lovely and really friendly and always try to include her. In any other places, id worry she'd get picked on. Here, they are nice and she's under my watchful eye so I know she'll be okay. I suspect she might be on the spectrum. She works hard and this job was perfect for her- doing isolated work on her own working with spreadsheets and data without having to communicate much with people.

If you are parents, I'm sure you'd understand. I'm just worried about her and wanted her settled. It so happened that the overall team manager went in long term sick and subsequently retired, so an opportunity arose where I could train my daughter on senior level work. It's almost like all the stars just aligned. I just wanted her settled in a job. She already struggles in so many areas in her life and I didn't want her struggling in work too.

As for writing the JD, yes it went through all the HR processes but in the absence of the team manager, the HoD asked me to draw something up as he obviously doesn't have a clue about the tasks. I wrote it up and he added a couple of things and signed it off to HR as though he had written it. I wasn't involved in the recruitment/ shortlisting or interview.

I hope this sheds some light on things, it's not always so cut and dry when people do terrible things.

Also to add, it wasn't from me to refuse the rest of the team to see the JD. This was a decision made by the HoD.

SpringAndSunshineIsHere · Today 07:46

shehardlysleeps · 20/04/2026 17:28

This is how I feel. I was almost raised to think that things like this were free of consequences

So it’s your parents’ fault?

ThatCyanCat · Today 07:48

Tredadt · Today 07:39

@x2boys @cheekynamechang3 @ThatCyanCat @Momlife86 @CoffeeCantata @Jellybelly80 @calanaiscailleach @UnctuousUnicorns @mjf981 @365RubyRed @Dragonscaledaisy @ChiliFiend @Allseeingallknowing @Jellybelly80 @Hernameisdeborah
@Differentforgirls @ComfyKnickers @Livpool @Ihateboris @Newyearawaits @ainsleysanob @BluebelllsRosesDaffodills odills @Yeseyeam @thepariscrimefiles @vanillachoc

Wow, I'm shocked at the utter vitriol and wishes and hopes my daughter fails. To clarify a few things. Firstly this is absolutely true and like someone pointed out, nepotism isn't illegal. Someone even mentioned that it's common in the NHS too. I did nothing wrong. Yes, I trained my daughter up and withheld training from other staff. However, my daughter is very bright. She got a first at university. With a little help from me, she picked it all up really quickly and is doing really well in the role. She isn't lazy or a failure.

When she came here after uni as a temp, I didn't create a master plan about this. I didn't even know about the job until a few months after she started. She was really struggling to find a job. As mentioned previously, she's shy and lacks confidence. She struggled to fit in at secondary school and although uni was a lot better, it had it's own issues. She really struggles with her communication skills. The team are lovely and really friendly and always try to include her. In any other places, id worry she'd get picked on. Here, they are nice and she's under my watchful eye so I know she'll be okay. I suspect she might be on the spectrum. She works hard and this job was perfect for her- doing isolated work on her own working with spreadsheets and data without having to communicate much with people.

If you are parents, I'm sure you'd understand. I'm just worried about her and wanted her settled. It so happened that the overall team manager went in long term sick and subsequently retired, so an opportunity arose where I could train my daughter on senior level work. It's almost like all the stars just aligned. I just wanted her settled in a job. She already struggles in so many areas in her life and I didn't want her struggling in work too.

As for writing the JD, yes it went through all the HR processes but in the absence of the team manager, the HoD asked me to draw something up as he obviously doesn't have a clue about the tasks. I wrote it up and he added a couple of things and signed it off to HR as though he had written it. I wasn't involved in the recruitment/ shortlisting or interview.

I hope this sheds some light on things, it's not always so cut and dry when people do terrible things.

Also to add, it wasn't from me to refuse the rest of the team to see the JD. This was a decision made by the HoD.

Edited

I did nothing wrong.

Then why did you post it on a thread asking people for the worst things they'd ever done?

And I can't believe the arrogance of "parents will understand". I've reproduced too, twice, it doesn't mean I get to do whatever the fuck I want and claim noble altruism. No, it's not ok just because your daughter wasn't a good candidate and needed to do a little self improvement like everyone else's kids! You actually laughed at the other people who tried to do that and you prevented it!

This post makes it worse. I can definitely see why you want your daughter to inherit your job, with the lessons you've taught her she'll never gain anything on merit because she'll never gain the merit itself.

Tredadt · Today 07:52

ThatCyanCat · Today 07:48

I did nothing wrong.

Then why did you post it on a thread asking people for the worst things they'd ever done?

And I can't believe the arrogance of "parents will understand". I've reproduced too, twice, it doesn't mean I get to do whatever the fuck I want and claim noble altruism. No, it's not ok just because your daughter wasn't a good candidate and needed to do a little self improvement like everyone else's kids! You actually laughed at the other people who tried to do that and you prevented it!

This post makes it worse. I can definitely see why you want your daughter to inherit your job, with the lessons you've taught her she'll never gain anything on merit because she'll never gain the merit itself.

I did nothing wrong from a legal perspective, that's what I meant. I put this on the thread because I do realise I manipulated the situation in my daughter's favour which obviously wasn't right. . Like I said the team are a really nice group of people but they already have jobs and children and families and my daughter my never have that.

shehardlysleeps · Today 07:57

SpringAndSunshineIsHere · Today 07:46

So it’s your parents’ fault?

I think in certain ways they were very lax with aspects of parenting. I only blame myself for this though and I regret it, massively.

OP posts:
ScruffMuffin · Today 07:58

Enjoying this thread, and still working my way through it. I've been a boring little goody two-shoes, but have done things like:
Taking the last doughnut (in addition to my own share) and lying about it, more than once.
Losing my temper with the kids and yelling at them. To be fair, it takes a LOT to wind me up to that point.
Complaining about a friend by text, and accidentally sending it to him. I've been on the receiving end of this kind of thing, and it affected me badly. I've learnt to be more careful.