Please or to access all these features

AIBU?

Share your dilemmas and get honest opinions from other Mumsnetters.

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

957 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:
365RubyRed · 21/04/2026 11:21

Shatandfattered · 21/04/2026 10:39

Really? Deliberately lying about cancer, befriending women to steal their man, stealing, violence.... And this is the worst 😐

Yes, because she's proud of her actions, not ashamed. At least other posters are showing a bit of humility and know what they have done is completely wrong.

Dragonscaledaisy · 21/04/2026 11:15

ThatCyanCat · 21/04/2026 08:08

Everybody will know she only got the job because of her mum.

Imagine the things being said about her behind her back. She also has to live with the knowledge that she wasn't capable of finding a job herself after graduating. I feel very sad for her.

SoftandQuiet · 21/04/2026 11:07

Was an Avon lady once in the noughties. A customer returned an item and I never gave them their refund.

LittlestBoho · 21/04/2026 11:02

Ilovr · 21/04/2026 07:54

Nor trying to take over the thread, but does one ever get to a point where guilt from their past doesn't consume them anymore and does the development of our prefrontal lobe have alot to do with our decisions? ( please don't chew me, I know some young people made good decisions) but why can't I recognize the person I was.. Does one ever get there or it just becomes a part of you for the rest of your life. It's awful. I hate it here.

I can answer this.

Yes, you can reach a point where you're not consumed by shame and guilt anymore. I had an abusive childhood, wild teen years and excessively partying 20s. For years I would wake up in a cold sweat at night remembering how I was mean to a person in primary school, or flashing someone as a teen, or shagging an inappropriate guy in my 20s, or that I once left a party without saying "thanks for having me". I would stop seeing friends out of embarrassment, I'd feel sick with shame, I'd think these were things I could never come back from.

In my 30s I stopped drinking and had therapy. I realised a lot of my previous behaviour was due to having bad social anxiety so drinking to self soothe, then my anxious brain was torturing me with a lowlights reel of my past behaviour whenever it could. I was so cruel to myself. There's no need to suffer for 20 years for something you did. Even murderers hardly ever get sentences that long.

Now I look back on my past self with a kind of indulgent 'what was I like?!' feeling. I do wish I'd been kinder to others as a child and teen, but I'd never received any kindness then so I didn't know how. Once I knew better (and my brain had properly developed) I did better.

The outside world is horrible enough, don't let the inside of your mind be terrible too. 💐

Nollie · 21/04/2026 11:02

None of that was remotely your fault @FireHorse29

FireHorse29 · 21/04/2026 11:00

I've already posted my used pad childhood debacle but on reflection, there is one thing I did as a child that has haunted me more.

My grandad died of dementia when I was about 9. For some unknown reason my Mum brought me along to his deathbed to be there with the rest of the family for his final moments. Unfortunately I had literally just had the vicar round at school the day before, talking about how when Jesus comes back, all the dead will be raised to life again and not to be sad if someone you know dies as they are better off with Jesus in Heaven where everything is perfect. I was a very naive and innocent child, so fully believing the resurrection was right around the corner, I was very confused as to why all the adults were crying. About 10 minutes after he passed away, I asked my sobbing gran "why are you upset, it doesn't matter that he's died" again thinking he'd very shortly be back with us when Jesus returned. Obviously this got people in the room quite angry and I didn't really get a chance to explain myself as I followed this with "he's better off in Heaven than being alive", again completely innocently believing he was now having the time of his life with Jesus upstairs. I did NOT get any further attempts to tell anyone what I had meant as I was taken out of the room and shouted at quite a lot (understandably). My gran was inconsolable after this and she also passed away a few months later. I always felt as a child that I might have contributed to her broken heart and resulting death with my very clumsy attempts to make sense of things.

Conniebygaslight · 21/04/2026 10:59

Ihateboris · 20/04/2026 19:26

I remember many years ago when the National Lottery had just been launched, I told all my family (parents, siblings) that I'd won millions. I told them I'd pay their mortgages off etc, and was taking everyone on a Caribbean cruise. I honestly still can't believe I did something so cruel. Took a while for them to talk to me again.

There was a TV show about this sort of thing I vaguely remember where someone had to pretend they'd won the lottery and become really awful. If they got away with it they got a free holiday for all of their friends & family they'd had to lie to. It was a bloody awful show....I've never forgotten it.

365RubyRed · 21/04/2026 10:54

Jellybelly80 · 21/04/2026 09:52

It’s absolutely horrendous if it’s true.

Bloody awful, isn't it? And the poster sounds proud of herself. Sickening. I think if I was doing well at work, then found at retrospectively that my mother had manipulated things for me to succeed, I would resign. I'd rather get by on my own merits than have my mother still holding the reins.

KalamityKat · 21/04/2026 10:45

SabrinaThwaite · 20/04/2026 18:37

He rang to say he was just leaving work and would be home in half an hour. So I cooked dinner to be ready when he arrived.

Except he didn’t arrive. He rolled in 5 hours late because his colleagues (and his lift) went to the pub. Pre mobile phones but he didn’t use the pub pay phone either. He staggered in pissed as a fart without saying a word, put his shoes on the kitchen counter next to his (cold and congealed) dinner, disappeared upstairs and fell asleep.

It was just too tempting …

He put his shoes on the kitchen counter !

Shatandfattered · 21/04/2026 10:39

calanaiscailleach · 21/04/2026 10:07

Out of all the posts this is imho the worst.
Man I hope karma bites you hard. I think you are a really shit person. Zero integrity.
And the “lol”? Ugh.

Really? Deliberately lying about cancer, befriending women to steal their man, stealing, violence.... And this is the worst 😐

ScrollingLeaves · 21/04/2026 10:38

GravyMashMayonnaise · 20/04/2026 20:10

Our back door was like a stable door. I opened the top half and wanted him to jump up at the bottom half so I could pet him from inside the house. I pretended to open the back door so he'd put his front paws against it, which he did, but he fell backwards and broke his back on the edge of the step. He was put to sleep a week or so later.

Someone else asked if I ever got over it, and no, I haven't. I feel awful about it to this day - possibly because I don't think I told anyone about it at the time.

Like I said, completely innocent but caused his death nonetheless.

I asked. I am so sorry you have had this guilt all your life and can understand it must be difficult.

You must forgive yourself, you were such a young child, a puppy yourself, and no adult was watching out for either you or the vulnerable puppy.

I even once saw a grown man drop a puppy because it was wriggling. It didn’t get harmed, but it might have.

TheIceBear · 21/04/2026 10:38

Quamarina · 21/04/2026 09:47

very toxic relationship, I was really in love with the man but couldn’t make it work. He messed me around dreadfully and I’ve never forgiven myself for this, but after we broke up I got steaming drunk, went into town and carried on drinking, slept someone we both knew who’d previously asked me out but I hadn’t been interested. I was 30 so can’t use youth as an excuse. Even worse we got back together and I didn’t tell him because I knew it would be the final straw, but the guilt was too much and I had to end it after a few weeks, I was devastated at what I’d done and hated myself and just couldn’t act normal. He did find out eventually. I still think about this often 12 years on, it’s the only thing about my life I would change if I could. I’ve made lots of mistakes but this is the only one that hurt somebody else. It’s baffling how people can carry on with full blown affairs for years, I was a wreck after a 2 minute pump.

I don’t see what’s bad about this at all you were broken up

mjf981 · 21/04/2026 10:35

Tredadt · 21/04/2026 04:58

My daughter graduated 2 years ago. She's shy and very quiet and she struggled to find a job. I' was worried about her and wanted her settled. In the meantime, I got her working in my admin team at work in a local authority via an agency. I manage the admin team though don't directly line manage them. Weird set up but worked out perfectly.

I knew that a new role was being created which is a higher grade than the admin officers in my team. I gave my daughter full access to restricted areas meant for senior management and trained her fully in my role and also in everything for the new role. I wrote the job description tailoring it to the tasks my daughter does and to her strengths. The admin team only knew about it 6m before it was signed off. They requested to see the JD but were refused.

I fobbed off any requests for training from the admin officers in my team only focussing on my daughter's development. Poor things, asked so many times, lol. The job was advertised and my daughter obviously got it..She is now a senior member of my team and we work alongside each other.

The job is pretty good and will probably set her up for life in a very nice department in a good field. When I retire, she will take on my work.

This is diabolical.

Your workmates will hate you. Your daughter will always feel ashamed that nepotism got her where she is and likely has no confidence in her own abilities. Her workmates no doubt dislike her too as 'they know.'

There are no winners here. I don't know why you would feel smug about it.

LilWoosmum82 · 21/04/2026 10:30

Dumped a group of friends via messenger and then slagged them off on insta
I was in an abusive marriage at the time and i was angry that they hadn't noticed the complete change in my personality and appearance. They kept making comments about my weight and kept putting everything down to having a baby. Which it had nothing to do with. Anyway, it ended v v badly and i have never spoken to them again

Helpel · 21/04/2026 10:27

Coffeegirl40 · 21/04/2026 08:40

Had a friend sleep over we were about 10. Told her there was a dead baby in my mums wardrobe on the top shelf and sometimes at night the door would open by itself and the baby would fall out and slither round the house. She was hysterical and had to go home. No idea why I said that!

This really made me laugh 😂

UnctuousUnicorns · 21/04/2026 10:21

calanaiscailleach · 21/04/2026 10:07

Out of all the posts this is imho the worst.
Man I hope karma bites you hard. I think you are a really shit person. Zero integrity.
And the “lol”? Ugh.

I'm hoping it's made up, but I'm not too hopeful.

UnctuousUnicorns · 21/04/2026 10:16

Katemax82 · 21/04/2026 09:42

My friends sister was really popular and every boy I liked fancied her. I wished she would just disappear (after slagging her off immensely). 2 days after wishing that she died. We were 16 and I thought I'd caused it by wishing so hard

Two girls in the year above me in primary school used to bully me and make my life a misery. In their final and my penultimate p.s. year they said they would be waiting for me when I went up to the secondary school.

That summer the girl who was the ringleader in bullying me, died suddenly. I honestly couldn't decide whether to feel terrible or relieved. Sounds awful, I know, but I was so scared of them. No excuse to feel relief, I know, but I was ten or eleven and had lots of conflicting feelings at the time.

Locutus2000 · 21/04/2026 10:15

Elanol · 20/04/2026 17:56

Then that would become the worst thing you've ever done 😁

Depends how many bodies they have buried under the patio already. What's one more?

MoonWoman69 · 21/04/2026 10:15

When my mum died, she had a policy to cover funeral expenses. Except it was £400 short of covering the funeral. (She'd paid into it for years, I'll never use that company, they should be done for fraud in my opinion).
Anyway, I robbed Peter to pay Paul, instead of telling DH I needed extra money, as he was always stressing about it.
Consequently, I hid letters from the mortgage company, regarding the arrears.
One day I had an unsettling feeling. My DH had a day off work, I was constantly hovering around to make sure he didn't get to the post before I did anyway.
I couldn't shake off this awful feeling that something was going to happen. I made the excuse of going out to go clean the inside of my car.
A man pulled up in the street, followed by a transit van. He came over and asked if I was "my name". I said yes, he said "We're here to repossess your house".
I had to take him inside to let my DH, who had absolutely no idea what was going on, know what was happening.
The bailiff was amazing. He tried to come up with every solution possible for us. He should only have been there half an hour, but stayed for 3 hours.
We were evicted as we couldn't get hold of anyone to help at all. We rented for a year.
The upshot was that the equity payout from the house when the bank sold it was substantial, after selling some things and my dad topping it up, we managed to buy a much better house outright. A far nicer house in fact.
But the guilt still eats me up, that I had caused all that and turned my DHs world upside down in a second. I told him while we were trying to sort things out, that once everything was settled, I wouldn't blame him if he wanted to leave me and I would accept his decision. He said, and it still makes me cry now, that "we married for better or for worse, there's no way I'll be doing that". I caused so much pain, for my DH and my dad, who wouldn't speak to me for a good 8 months. I still have bouts of horrendous guilt, even though it's 11 years ago and we've got through it. I sadly lost my dad due to Parkinsons in 2023, I still wonder if my stupidity exacerbated his condition. Maybe that was my karma.

calanaiscailleach · 21/04/2026 10:07

Tredadt · 21/04/2026 04:58

My daughter graduated 2 years ago. She's shy and very quiet and she struggled to find a job. I' was worried about her and wanted her settled. In the meantime, I got her working in my admin team at work in a local authority via an agency. I manage the admin team though don't directly line manage them. Weird set up but worked out perfectly.

I knew that a new role was being created which is a higher grade than the admin officers in my team. I gave my daughter full access to restricted areas meant for senior management and trained her fully in my role and also in everything for the new role. I wrote the job description tailoring it to the tasks my daughter does and to her strengths. The admin team only knew about it 6m before it was signed off. They requested to see the JD but were refused.

I fobbed off any requests for training from the admin officers in my team only focussing on my daughter's development. Poor things, asked so many times, lol. The job was advertised and my daughter obviously got it..She is now a senior member of my team and we work alongside each other.

The job is pretty good and will probably set her up for life in a very nice department in a good field. When I retire, she will take on my work.

Out of all the posts this is imho the worst.
Man I hope karma bites you hard. I think you are a really shit person. Zero integrity.
And the “lol”? Ugh.

Vintageblueribbon · 21/04/2026 10:06

When I was a teenager (about 12 onwards) my parents stopped paying for anything I needed

(My mother is a narcissist and my father goes along with whatever she wants)

Food/sanpro/school uniform/school books/school shoes/clothes/teenage treats/chocolate/period painkillers etc-i had to fund it myself

I got a babysitting job that would pay £5 per day (stay over,get to,get the kids to school,go to school myself,come back,pick the kids up,start the evening routine,put them to bed,rinse and repeat for years)

Dad wasnt very hands on and mum was either in the pub or at work-they split up and mum really went on a bender with dad in the background

I also had really bad periods-id go through a pad an hour/hour and a half and had to fund these myself

One period,I had no money at all for some reason (I would have been about 14) and knew neither parent would 'lend' me a few quid for some always so I saw £10 on the side and swiped it

I bought the pads i so badly needed (didnt have enough for food so stole some pasta when they where out) and they knew it was me-i got into so much trouble but it was either that or miss school/work due to free bleeding and the cycle would continue (no work,no pay)

They are millionaires who could afford to miss a tenner but I still feel so unbelievably guilty and have paid my dues to them (financially and emotionally) in many ways since

Im now nc and they can't understand why

UnctuousUnicorns · 21/04/2026 09:57

Coffeegirl40 · 21/04/2026 08:40

Had a friend sleep over we were about 10. Told her there was a dead baby in my mums wardrobe on the top shelf and sometimes at night the door would open by itself and the baby would fall out and slither round the house. She was hysterical and had to go home. No idea why I said that!

🤣🤣🤣

muddlemothermayhem · 21/04/2026 09:56

Back when I was young, I worked at a place that paid notoriously awfully and had really insecure contracts.

For some reason, I was made the ‘head’ of the team and the work was split between three of us, although it wasn’t even enough for a full-time role for one person.

When it came to reallocating the shifts, I was trying to get a mortgage to move out of my parents’ place, and I asked for all the shifts for myself. I still feel awful about it now, the others in that team were lovely.

ConnieHeart · 21/04/2026 09:55

@Katemax82oh god, I bet you didn't drink again for quite some time!

I once puked in the back of a taxi & just paid him the normal fare & got out. Poor guy. He didn't even seem to notice somehow! I was about 17

Goatsarebest · 21/04/2026 09:55

LapisBlue · 20/04/2026 18:42

No, I was single on both occasions! When I think about my traumatised divorced life now it's as if I was a different person.

PS,: Neil was the best one.

Neil here. Thanks. You were my best that day too.

Swipe left for the next trending thread