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AIBU?

Share your dilemmas and get honest opinions from other Mumsnetters.

To think Dsis is overeacting after SS hit niece?

885 replies

PapaSteel · 13/08/2026 13:22

I've been with my partner for 8 years and we have dc together, he has a son from his previous relationship. He's 15 and not his bio son but he's been in his life since he was young and he sees him as his dad

Alot happened when we got together as his ex would tell SS that DP didn't want to see him anymore now he was dating me which wasn't true at all. She was physically & verbally abusive towards him and he's been living with us since he was 13 (after he told school about howHe has a lot of trauma and anger which school are supportive about and outside of school he gets help on how to manage the anger and he is a lot better than he was but the anger is still there so we are just patient with him

We're currently on holiday with my sister and her 2 dc and have been here since Monday. There was issues almost straight away as ss got angry at the claw machine but he and dp left the arcade and went for a walk to calm down as the arcade was busy so there was no way he'd have been able to calm down whilst in the arcade. My sister described him as a tantrumming toddler who didn't get his own way and said partner wasn't doing him any favours. I ignored her

He loves drawing and usually if you ask he will show what he's drawing but earlier he was at the table drawing and my niece (10) kept asking what he was drawing. He told her but she kept saying “show me show me” despite him saying no, she pulled his sketch book away from him which caused him to shout at her and she “accidentally” spilt her water on it. He was clearly very angry/upset and walked off to go to his room and she followed him and called him a baby, asked if he was going to cry etc, and he turned round and hit her and now he's being made out to be the bad guy

During this my sister was out with her other dc, my dp was in the shower and I was telling her multiple times to leave him alone and do something else even when she was repeatedly telling him to show her his drawing and she ignored me

My sister is now back and furious, she said she doesn't want her children to share a space with a “violent man”, and has even mentioned going to the police and social services on us if we're happy to have him around our children as he's not related to us when asked where he should go she just replied care

AIBU to think she's overreacting? I know SS shouldn't have hit her and he knows this too but she hasn't apologised for her part in deliberatly winding him up and sister says she doesn't need to as she's a child and he's nearly an adult

OP posts:
bitmiffed26 · 13/08/2026 19:13

WhatNoRaisins · 13/08/2026 19:11

I don't think it's as comparable to domestic violence anyway. When you're an adult you've got more ability to walk and away and keep away from people that upset you.

Well, from the sounds of it the girls mum has taken this very seriously, and will hopefully keep her daughter well away from him in the future.

I know that if this happened to either of mine, they wouldn’t be sharing breathing space with him again.

MyDarlingRose · 13/08/2026 19:12

PapaSteel · 13/08/2026 13:30

He's not strong enough to seriously hurt her, he is only about 5”5 there's not much difference between them but that's besides the point. I and SS recognise he shouldn't have hit her and he's apologised but she has told niece not to apologise when she was equally as in the wrong by deliberately winding him up

There is an enormous difference between even a man and woman of 5’5 in terms of strength. A teenage boy of that size is many times stronger than her.

By 15, boys are usually mid–late puberty, with rapidly increasing lean muscle mass and strength. Girls at 10 are generally pre‑pubertal, with much lower muscle mass and no testosterone‑driven strength gains yet.

Upper‑body strength: boys are ~50% stronger than girls by ages 14–17, but only ~17% stronger at ages 5–10.

A 15‑year‑old boy vs a 10‑year‑old girl spans both categories, so the gap is much larger — typically about 2×. Thats 200% stronger than her.

SkipsorNiknaksorSpaceraiders · 13/08/2026 19:12

BoredZelda · 13/08/2026 19:10

I wonder if all those insisting the girl was asking for it by winding him up and see no difference between a 15 yo boy hitting a 10 year old girl and the same type of people insisting you can’t argue with biology and that’s why we should exclude trans kids from everything.

He shouldn’t have hit her, but the situation also should have been managed better. It must have been obvious this was becoming a problem much earlier on and an adult should have stepped in. He needs to get more help for his issues, and although she isn’t due an apology, she needs to learn about people’s boundaries.

A consideration about such things crossed my mind earlier. But then I got a headache so brought it to an end, not worth it. Takes up too much space already.

BrickProblems · 13/08/2026 19:11

I think OP is so busy caring for the troubled boy they’ve essentially adopted that she can no longer see that he is the bigger stronger person in this situation. I was hanging out with a friend’s ten year old girl the other day, she has scented felt tips and does hand stands. If a 15 year old boy hit her I’d be calling the police and I wouldn’t give two hoots about his background because many people have troubled backgrounds but they don’t all turn to violence. Yes, even if she’d called him a crybaby and spoilt his drawing fgs.

WhatNoRaisins · 13/08/2026 19:11

Itsa10fromLen · 13/08/2026 19:04

I mean, it’s a bit of a stretch to liken the way this 10 year old supposedly wound up someone older to domestic violence and reactive abuse. She’s literally 10. There’s a significant power imbalance to start with and the goading / snatching that the 10 year old supposedly did was so bad that the OP, having witnessed the whole thing. ….. carried on feeding the baby.

I don't think it's as comparable to domestic violence anyway. When you're an adult you've got more ability to walk and away and keep away from people that upset you.

Shesasupergirlbut · 13/08/2026 19:10

I know you're getting a lot of people going on about your SS having anger issues etc, and I'll probably get flamed for my perspective but goddamn is your niece a pain in the butt. Yes, he shouldn't have hit her- you've said it multiple times, you've said he knows this, we've all read it. He shouldn't have hit her. But it sounds like he was really trying to do the right thing by moving himself out of the situation and she was provoking him for a reaction.

If people are saying he is old enough to know better, than so is she. She's moving up to secondary and if she doesn't learn this fast she's going to be in a lot of fights.

Clearly everyone knows he has anger issues because of trauma due to his upbringing- it sounds like your sister in law knows this only too well and so does her child, which i assume is why she was goading him.

Apart from the hitting, I'd sat he had a appropriate reaction to someone destroying his artwork- I'm an arty person too, it's probably his escape and his peace.

BoredZelda · 13/08/2026 19:10

I wonder if all those insisting the girl was asking for it by winding him up and see no difference between a 15 yo boy hitting a 10 year old girl and the same type of people insisting you can’t argue with biology and that’s why we should exclude trans kids from everything.

He shouldn’t have hit her, but the situation also should have been managed better. It must have been obvious this was becoming a problem much earlier on and an adult should have stepped in. He needs to get more help for his issues, and although she isn’t due an apology, she needs to learn about people’s boundaries.

bitmiffed26 · 13/08/2026 19:09

HumberSquid · 13/08/2026 19:08

You're not the only one. Doesn't fit the narrative though.

Happy to be provided a list of all the names he’s been called.

won’t hold my breath that it’ll be as long as hers though.

Ufitno · 13/08/2026 19:09

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SkipsorNiknaksorSpaceraiders · 13/08/2026 19:09

lifeturnsonadime · 13/08/2026 19:07

It's appalling misogyny and these posters just don't see it.

That is the most alarming thing of all, isn't it.

Itsa10fromLen · 13/08/2026 19:09

PapaSteel · 13/08/2026 13:30

He's not strong enough to seriously hurt her, he is only about 5”5 there's not much difference between them but that's besides the point. I and SS recognise he shouldn't have hit her and he's apologised but she has told niece not to apologise when she was equally as in the wrong by deliberately winding him up

YOU ARE 100% LYING. There would need to be a serious glitch in the matrix for a 15 year old boy not to be considerably taller and stronger than a 10 year old girl. Even if (coincidently for you) one is just 15 and one is almost 11.

Is she training for Tough Mudder? World’s strongest child? Is he kept in a cupboard and fed only water and gruel?

Pull the other one.

Ufitno · 13/08/2026 19:08

This reply has been deleted

This has been deleted by MNHQ for breaking our Talk Guidelines.

HumberSquid · 13/08/2026 19:08

SkipsorNiknaksorSpaceraiders · 13/08/2026 19:07

I called him a little shit.

You're not the only one. Doesn't fit the narrative though.

HumberSquid · 13/08/2026 19:07

Itsa10fromLen · 13/08/2026 19:05

Isn’t it? Haha, boils my piss tbh. Boys will be boys though eh? And he doesn’t have his Mum so…

Yes, if it were true it would be most unfair. It isn't though. Maybe you should both read the thread more carefully.

lifeturnsonadime · 13/08/2026 19:07

bitmiffed26 · 13/08/2026 19:04

All of the name calling on this thread towards the girl too! Bitch, brat, cow and so on.

not once has the boy been called a violent little prick, or a horrible little wanker.

strange that.

It's appalling misogyny and these posters just don't see it.

SkipsorNiknaksorSpaceraiders · 13/08/2026 19:07

bitmiffed26 · 13/08/2026 19:04

All of the name calling on this thread towards the girl too! Bitch, brat, cow and so on.

not once has the boy been called a violent little prick, or a horrible little wanker.

strange that.

I called him a little shit.

InterIgnis · 13/08/2026 19:07

Bluehouse14 · 13/08/2026 19:00

Good on your and your partner for taking in and loving and supporting a boy with a troubled past. I think that's amazing. You're both clearly very good people. Obviously he shouldn't have hit her and he knows this. That's the trouble with difficultycontrolling anger and it's great he is getting more support with that. The child sounds extremely badly behaved and goading him. I wouldn't pay your sister any attention and just keep them separate for a while/indefinitely if that's what she wants

So committed to cleaning up someone else’s mess that they’re willing to put their own children at risk of violence. Truly amazing(!)

BrickProblems · 13/08/2026 19:06

BurnoutGP · 13/08/2026 18:38

There is no way in hell any of my daughters would be apologising for provoking someone (an older bigger male) into hitting them. No way would I be in any way letting them think that anything they did made it ok for a male to hit them.
This thread is wild.

Couldn’t agree more.

Itsa10fromLen · 13/08/2026 19:05

bitmiffed26 · 13/08/2026 19:04

All of the name calling on this thread towards the girl too! Bitch, brat, cow and so on.

not once has the boy been called a violent little prick, or a horrible little wanker.

strange that.

Isn’t it? Haha, boils my piss tbh. Boys will be boys though eh? And he doesn’t have his Mum so…

lifeturnsonadime · 13/08/2026 19:05

Tiedtomydesk · 13/08/2026 18:57

What about when the sexes are reversed?

If a woman is violent to a man then of course she should face the same criminal liability that he faces.

She is much less likely to murder him though, 1-2 women in the UK are murdered by their spouse/ ex spouse each week. This often escalates from previous violent acts.

Itsa10fromLen · 13/08/2026 19:04

WhatNoRaisins · 13/08/2026 19:00

If we're thinking about this in a domestic violence context if I knew a woman who liked to provoke and goad her husband into hitting her because she enjoyed the drama or the attention it got her then I would be very condemning of the husband for the violence. I'd only feel sorry for her in that I'd feel sorry for her that she was so messed up that she was seeking drama and attention that way. I'd be keeping her at arms length because I'd worry what she'd try on me.

As PP have said, the 15 year old is getting help and being taught strategies for this behaviour. The 10 year old here isn't.

I mean, it’s a bit of a stretch to liken the way this 10 year old supposedly wound up someone older to domestic violence and reactive abuse. She’s literally 10. There’s a significant power imbalance to start with and the goading / snatching that the 10 year old supposedly did was so bad that the OP, having witnessed the whole thing. ….. carried on feeding the baby.

HumberSquid · 13/08/2026 19:04

MCF86 · 13/08/2026 19:03

She sounds like a brat, but she was not equally in the wrong. Plenty of ten year olds are annoying but I don't go round hitting them.

Are you 15 too?

bitmiffed26 · 13/08/2026 19:04

All of the name calling on this thread towards the girl too! Bitch, brat, cow and so on.

not once has the boy been called a violent little prick, or a horrible little wanker.

strange that.

MCF86 · 13/08/2026 19:03

PapaSteel · 13/08/2026 13:30

He's not strong enough to seriously hurt her, he is only about 5”5 there's not much difference between them but that's besides the point. I and SS recognise he shouldn't have hit her and he's apologised but she has told niece not to apologise when she was equally as in the wrong by deliberately winding him up

She sounds like a brat, but she was not equally in the wrong. Plenty of ten year olds are annoying but I don't go round hitting them.

SkipsorNiknaksorSpaceraiders · 13/08/2026 19:02

Viperregency · 13/08/2026 19:01

There is no justification for violence, and the she made me do it is the abusers handbook.

what If he hits his girlfriend when he gets one, if she winds him up. What about you op, what about if he feels you’re being annoying and he smacks you one. Is that ok,

your sister is right. Yes her child was silly and on the wind up. But it doesn’t justify violence.

Yep. It's like a wife beater saying to his wife, look what you made me do.