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AIBU?

Share your dilemmas and get honest opinions from other Mumsnetters.

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

677 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:
Travelfairy · 20/04/2026 21:59

Had sexual relations with a married man. Pretty bad. About the only thing I regret in my life. He was 30, I was 21. He fed me stories that they were separating and they did a year or so later but I still should have known better....

UnctuousUnicorns · 20/04/2026 22:01

Emptied what I thought was an unused nesting box in our garden. To my horror several baby chicks tumbled out. I put them back but the parents tossed them out again thanks to my interference. 😭😭😭😭

Lesson learned - keep the fuck away!

Moveoverdarlin · 20/04/2026 22:05

WellConfusedandDazed · 20/04/2026 18:33

Meh. Were you cheating? If not I don’t think this is bad at all.

Me neither. I remember sleeping with two men in the same day but I don’t feel bad AT ALL. Couldn’t give a shit. I look back with fondness about scenarios like this. My life now as a wife and Mum is a million miles from that.

I would jump at the chance to have two blokes in one day now!

ChiliFiend · 20/04/2026 22:05

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.

This is only bad if you subscribe to the patriarchy. If you're not hurting anyone (everyone was consenting, nobody was cheating), it's doesn't qualify, in my opinion :)

tnorfotkcab · 20/04/2026 22:08

Moveoverdarlin · 20/04/2026 22:05

Me neither. I remember sleeping with two men in the same day but I don’t feel bad AT ALL. Couldn’t give a shit. I look back with fondness about scenarios like this. My life now as a wife and Mum is a million miles from that.

I would jump at the chance to have two blokes in one day now!

Lol, I had sex with two men at the same time, my idea, they were well up for it. All of us single and having fun.
Can't see why it would be bad thing.

CatBooksWineInThatOrder · 20/04/2026 22:11

iamfedupwiththis · 20/04/2026 17:28

Not sure if having a poo outside as I was desperate is better or worse than an affair.

That might depend on where you had the poo?? 😂

Babyghirl · 20/04/2026 22:12

iamfedupwiththis · 20/04/2026 18:18

Got drunk and wet the bed

Me to, but only i was in the top bunk with my sister in the bottom bunk, she woke up soaked 🤣🤣🤣🤣🤣🤣

MaryBeardsShoes · 20/04/2026 22:13

Nollie · 20/04/2026 17:59

I see your 2 men and raise you one man and one woman (separately) on the same day. I wish that was the worst thing I'd done in my life...

All consenting adults?

Imacelebritygotit · 20/04/2026 22:13

I had this very, very nasty horrible woman’s who treated people horribly phone number. she said something very cruel to a family member

so I signed her up to bunch of spam online. Insurance things. Spam calls, texts

her husband once mentioned how she is very afraid of death/funerals.

so I also signed her up to a bunch of funeral call back services

Moveoverdarlin · 20/04/2026 22:14

skiprun · 20/04/2026 21:21

Absolutely nothing that has been said so far is remotely close to the worst thing I’ve done so I’m keeping 🤐

Same. All these ‘I ran over a rabbit, I slept with a married man, I wet the bed, I shoplifted some White Musk from the Body Shop’ were just weekly occurrences in the 90s. I thought I was quite a boring person until I read this thread.

Whatexcellentboiledpotatoes · 20/04/2026 22:17

Brightbluesomething · 20/04/2026 20:17

What have I just read! Please tell me this was a medical necessity and not a fetish!

My DS (now nearly 13) was still very young, less than a year old.
He was a terrible sleeper, and I mean really bad. He would sleep for maybe an hour, or even half hour at a time. My DH and I were both on the verge of breakdowns. We were honestly quite mentally unwell.
It was during the day, and I had managed to get him down to sleep on his cot in his bedroom upstairs. At the time, we lived in a tiny two-up two-down with creaky stairs, with the bathroom at the top of the stairs. I got downstairs and I suddenly needed to poo. I absolutely could not bring myself to risk creeping back up the creaky stairs and risk waking him. I needed even just a few minutes so desperately. So I grabbed one of his clean nappies, squatted in my kitchen and pooed in it. Then I used a babywipe on myself, put it all in a nappy bag and took it outside with the other nappies. Never told my DH.
Wasn't my finest moment but people do fucked up things when they are sleep deprived sometimes. It would be embarrassing for anyone in RL to know, but it's not the worst I could have done!

cadburyegg · 20/04/2026 22:17

SurvivalInstinctsOfABakedPotato · 20/04/2026 20:23

Oh do they?! I've felt awful about that for years thinking about it's little scared paws trying to dig it's way out and I just put it in the wardrobe!

It’s an instinctive/survival thing. They are prey animals. So if one can sense another one is dying/ill or has already died they eat it so the body doesn’t smell and draw the attention of predators. It isn’t malicious.

MaryBeardsShoes · 20/04/2026 22:18

Moveoverdarlin · 20/04/2026 22:14

Same. All these ‘I ran over a rabbit, I slept with a married man, I wet the bed, I shoplifted some White Musk from the Body Shop’ were just weekly occurrences in the 90s. I thought I was quite a boring person until I read this thread.

Edited

I’m sure we’ll all be super impressed!

cheekynamechang3 · 20/04/2026 22:19

VeterinaryCareAssistant · 20/04/2026 21:14

I would be so upset to have received one of these. The instant feeling of finally some financial relief only to realise it was a cruel joke would have broken me.

agree. I'd never do this to someone, it's just not funny.

MaryBeardsShoes · 20/04/2026 22:20

I don’t think I’ve lived!!

cheekynamechang3 · 20/04/2026 22:22

Allseeingallknowing · 20/04/2026 21:19

That was so mean and cruel. He must be twisted

Weirdly, no. He's not. Just very misguided on this one instance. I have a feeling it was his girlfriend's idea as most of the cards went to friends of hers.

HorsesForMorses · 20/04/2026 22:29

Shoplifted.

Took part in teasing a younger child at primary school.

Damaged someone's gatepost with my car (though did later anonymously send them £150 which I hope was enough to repair).

Stole from my mum's purse when a teenager.

Lied about pointless shit.

Said something to a couple in a bar when I was drunk that I was too drunk to remember saying but which must have been bad because the barman told me to apologise or leave.

When wildly drunk in a friend's flat, threw kitchen utensils and pans out of his window at a group of annoying teenagers 9 storeys below. This is the worst one. I could have killed a kid with a pan, and also my friend couldn't make a meal for weeks afterwards.

Imacelebritygotit · 20/04/2026 22:30

Another time I knew this very nasty guy. Too long to explain the stuff he did. But trust me, awful guy. Beat his gf, etc

but I also had this phone number

i went to public toilets and left note saying

“send me pics of ur poop, best poop gets 10 pounds”

I went on some gay chat websites and posted his number saying contact for good time”

I then also made fake Facebook account with his name and photo. Joined some Facebook groups and other places and began riling people up.

posting some very controversial stuff. Women’s rights etc

Just example: saying women should be slaves, they are worthless, have their rights taken away, on pro trump accounts badmouthing trump supporters

When everyone was furious I then had another dummy account saying guys!!! I doxxed this guy, this is his phone number!!! Give him a piece of mind

now I’m sure all this was highly illegal but I was a dumb teen

HorsesForMorses · 20/04/2026 22:30

Oh also - sent an anonymous email to a previous employer slagging them off in an unnecessarily personal way. I was a dick in my 20s.

cadburyegg · 20/04/2026 22:30

Oh in a house share once one of our housemates was pissing us off so me & my partner in crime poured her lactose free milk down the sink (she was lactose intolerant) and refilled the carton with cows milk. I was diagnosed with coeliac a year later - definitely got my come uppance

cheekynamechang3 · 20/04/2026 22:30

Notasbigasithink · 20/04/2026 21:34

I've done worse.....
New BF house, stayed over for first time. Desperately needed a poo and bathroom right next to bedroom so would have heard/smelt it. I was too embarrassed just in case he heard me (IBS so would have been a splatty, farty one!) so i told him I was going to have a quick shower and I pooped in the shower and pushed it down the plug hole...... 🙈🙈🙈

you could have just turned the shower on and done the poo in the toilet. The shower would have masked the poo noises.

ChamonixMountainBum · 20/04/2026 22:31

MaryBeardsShoes · 20/04/2026 22:20

I don’t think I’ve lived!!

It seems all you have to do is shit yourself or shit in a bag and you can join the club.

Hallamlass · 20/04/2026 22:34

cheekynamechang3 · 20/04/2026 22:30

you could have just turned the shower on and done the poo in the toilet. The shower would have masked the poo noises.

Absolutely. Another thing to do is to flush the toilet before you start, then the noise covers the pooing, wait for it to finish, and flush again. Use a cleaning product/air freshener and open the window.

Hallamlass · 20/04/2026 22:34

ChamonixMountainBum · 20/04/2026 22:31

It seems all you have to do is shit yourself or shit in a bag and you can join the club.

Who knew that would be a common theme?

Wonkyspecs · 20/04/2026 22:36

It's not the worst (I will take those ones to the grave!)
My ex went out to buy nappies...rocked on back with no nappies but a brand new pair of timberland boots and designer cargo jeans. I was livid as we were skint!
Cue me....mad as he'll!! Chucked one of the boots down the rubbish chute and cut a leg off his new jeans. That was the worst thing I did because I should have returned them or even just donated them to charity...I regret the waste!!!