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AIBU?

Share your dilemmas and get honest opinions from other Mumsnetters.

To tell my sister I don’t want to see her anymore if she doesn’t discipline my nephew for biting me?

1000 replies

IGrewUpInTheFallOut · 30/11/2025 19:21

My sister is a single mum to two children - my nephew, who is 14, and my niece, who is 13. My nephew has autism and her husband left when he realised how tough things would be.

I’ve just got back from a weekend of babysitting for her which has been a bit of a nightmare. My nephew used to be quite violent and angry, but my sister put him into kickboxing when he was 7 and he’s flourished, and it has really helped him regulate himself.

When I arrived yesterday, she warned me that he was quite overstimulated and that I just needed to follow the basic routine (get him to bed at a reasonable hour). I left him to his own devices until I went into his room at about 10:30 and asked him to put his iPad down and go to sleep.

He immediately grabbed hold of me and bit my arm, it must have been about twenty seconds before he let go. He was screaming at me to leave his room by that point, so I did, and went downstairs. I told my sister when she got home today, and she said she would have a word with him.

I’ve just got home and seen how bad it is (I’ve attached a picture). I sent it to her and asked how she had dealt with it and she said she asked him, but he said he felt overwhelmed and didn’t want to go to sleep, so he lashed out. She says that in her mind, that’s the end of it and she won’t be pushing it further as he can’t help feeling overwhelmed.

I’ve said in that instance I don’t feel comfortable being around him again and I won’t attend family Christmas. Now she and my mum are telling me that I’m selfish and I will ruin the Christmas period for everyone if I don’t come.

AIBU to draw this line in the sand?

To tell my sister I don’t want to see her anymore if she doesn’t discipline my nephew for biting me?
OP posts:
Leopardsandcheetahsarefast · 30/11/2025 21:53

IGrewUpInTheFallOut · 30/11/2025 19:29

in general he is usually a lot better than this. He understands what is right and wrong and what he should and shouldn’t do. I just don’t feel comfortable being around him

This. You can just say I don’t feel comfortable looking after him. I was injured .

IGrewUpInTheFallOut · 30/11/2025 21:55

Disco2022 · 30/11/2025 21:53

I'm not sure if anyone else has said this but how could it be so sore that it can't have water over it, and so insignificant that you didn't really think about it or take a photo of it on the night it happened.
I would say don't go to Christmas give the poor child a break from you.

Because I was so scared after being assaulted that I just took myself into the room I had been given as fast as I could, tried to calm myself down and then tried to fall asleep as I knew I had to be up early the next morning. I then had to get them both up in the morning, make breakfast, see my sister home (and tell her what had happened) and then had a nearly five hour drive home from her house. I then had to get everything sorted for myself for the week ahead at work and take a shower. It was a non-stop day.

OP posts:
Netcurtainnelly · 30/11/2025 21:55

Don't look after him again. She will.be the loser. No babysitter would put up with that.
How disgusting of him
.
Wonder how your sister would like it if you'd bitten him.

SpaceRaccoon · 30/11/2025 21:56

OP I don't blame you for feeling this way. He's not a little boy. But some on MN always bend over backwards to defend male violence and misbehaviour if there's any sort of SN involved, even if the potential victims are little girls or even babies.

Arghhhhggggggggggg · 30/11/2025 21:57

Vivi0 · 30/11/2025 21:51

The sister has dealt with her son in the most appropriate way for his condition, yet the OP is issuing her sister with ultimatums to force her into dealing with her son in a way that the OP sees fit, which is not appropriate or suitable for a child with autism.

Saying she won't come for Christmas if the son isn't punished isn't asking her sister to put her before her son is it 😅. If she had said to her sister she won't be attending if the son is there then I'd agree with you, but it's not that

Also, there's different levels of autism and the nephew is high functioning, well enough that he's fully verbal and able to attend mainstream school and attend clubs where he is able to control himself. He's not a non verbal autistic child who doesn't know what day it is.

whatsnewpussycat34 · 30/11/2025 21:59

Peoplearereallyweird · 30/11/2025 21:46

You think a child with a disability shouldn't be a priority?

No, you're quite right, it won't just switch off when he reaches 18, but this is where it is the parents job (and extended family too if possible) to help teach them managing strategies. My son was extremely disregulated when younger, throwing things - sometimes at me -screaming, shouting. It was horrific and I worried for his future BUT with research, different managing techniques, new learning environment and the fact he is now a mid teen with more autonomy, we are in a fastly better place and I don't worry so much.

No, I don’t think this boy is the priority in this situation, at all. Just like i don’t think anyone who is any aggressor in any situation is.

I’m glad your son is doing well, and hope he continues to do so. But your son hasn’t assaulted anyone. This boy has.

Peoplearereallyweird · 30/11/2025 22:00

IGrewUpInTheFallOut · 30/11/2025 21:55

Because I was so scared after being assaulted that I just took myself into the room I had been given as fast as I could, tried to calm myself down and then tried to fall asleep as I knew I had to be up early the next morning. I then had to get them both up in the morning, make breakfast, see my sister home (and tell her what had happened) and then had a nearly five hour drive home from her house. I then had to get everything sorted for myself for the week ahead at work and take a shower. It was a non-stop day.

I'm sorry if any of my comments have seemed I'm minimising what happened, just to be clear, it is not ok that this happened and it wasn't your fault. Autism is a reason for it, but it is not an excuse for it. Out of curiosity, how was he the next morning?

Nayyercheekyfeckers · 30/11/2025 22:00

Your poor sister. How tough for her and how well she has done for toughing it out. She obviously knows her own son best and bow to deal with him. You shouldn't be threatening to cut her and her children off. I do think that you're being selfish putting her in this position. However, you are well within your rights to refuse to be alone with him and certainly not to put him to bed again. You should also show some concern and support for your sister and niece if you think that they are at risk.

Vivi0 · 30/11/2025 22:00

Arghhhhggggggggggg · 30/11/2025 21:57

Saying she won't come for Christmas if the son isn't punished isn't asking her sister to put her before her son is it 😅. If she had said to her sister she won't be attending if the son is there then I'd agree with you, but it's not that

Also, there's different levels of autism and the nephew is high functioning, well enough that he's fully verbal and able to attend mainstream school and attend clubs where he is able to control himself. He's not a non verbal autistic child who doesn't know what day it is.

You haven’t even read what I said.

Forcing her sister to deal with her autistic nephew in a way the OP sees fit, rather than what is best and what works for him, is asking her sister to put her before her son.

birdsnestinghere · 30/11/2025 22:00

Disco2022 · 30/11/2025 21:53

I'm not sure if anyone else has said this but how could it be so sore that it can't have water over it, and so insignificant that you didn't really think about it or take a photo of it on the night it happened.
I would say don't go to Christmas give the poor child a break from you.

Sometimes these things take a while to come up. Probably there is bruising underneath that will come out over the next few days.

Leopardsandcheetahsarefast · 30/11/2025 22:01

Ok you know him and I don’t.

My autistic daughter knows what she is doing, as does my ND step son and other children. So yes they need to know this has got an impact.

what if you need stitches or worse?

my best friend works with special needs pupils. All 14 years and above and there is usually 12 children in her room and despite them all needing 1-2-1 they are normally short staffed and she usually has 8-10 staff in her room. She has been punched, kicked, bitten usually once a week. The school has a no sanction policy - none. She has known these children for years and worked with them daily, they can regulate - but she firmly believes after 10 years there that the majority of the behaviour stems from no exclusion policy and no parental sanction policy. Ones who parents do sanction are better.

IGrewUpInTheFallOut · 30/11/2025 22:01

Peoplearereallyweird · 30/11/2025 22:00

I'm sorry if any of my comments have seemed I'm minimising what happened, just to be clear, it is not ok that this happened and it wasn't your fault. Autism is a reason for it, but it is not an excuse for it. Out of curiosity, how was he the next morning?

Pretty much normal. A bit grumpy, I expect that after I left him to it he stayed up for most of the night. But he was acting like nothing had really happened.

OP posts:
Poppyseeds79 · 30/11/2025 22:02

Mslak · 30/11/2025 21:52

There are several things here and it isn’t clear cut. The situation is being shockingly mismanaged.

Autistic kids struggle with transitioning between different things/activities/events. Even more so when one of those things is like crack cocaine (iPad - especially to an autistic boy). This is autism 101. Is your sister not aware or did she not tell you? I would expect a very angry reaction if I told an autistic teen boy with issues that necessitated control via sport to just put the ipad down and go to sleep. That doesn’t mean it was ok to bite you, but it is quite clearly part of the reason that you got bitten so badly. The way that your sister should have told you to handle the situation was to calmly knock on his door in advance of the time that he needed to stop iPad and let him know that in approximately 15-30 minutes or whatever, it would be time to start getting ready for bed. I would have checked with him that it was sufficient time to finish his video or whatever and if not, I would have made an agreement that ok, if the video has 35 mins to run, I will come back up after 35 mins and check. I also don’t think I would have left him to his own devices for a very long time. I would have gone to check on him earlier in the evening, perhaps seeing if he was ok by asking did he want water or whatever. To be quite honest, I think that simply telling him to put the ipad down and go to bed was like taking a plate of food from a pitbull half way through a meal. I’m not saying that to be offensive - I have an autistic teen ds. And I love dogs.

That said, now that he has bitten you in a hard and sustained manner, your sister/mother response is not acceptable. Your sister needs to make him understand that what he did was absolutely terrifying, painful and actually criminal. And that aunt OP could go to the police if she wanted.

I personally think he probably wouldn’t hurt his sister because she would subconsciously have learnt how not to trigger this kind of reaction, but growing up in the household.

I think that you should quite reasonably say that you are unable to babysit in the future because you do not have the skills or experience to look after your nephew. I’m not saying that to be rude to you, it’s just factual and it avoids a statement such as “he is dangerous” or whatever. I wouldn’t say it until you are asked to babysit. There’s no point in having argument if she hasn’t asked you to babysit.

I think that you probably should attend Christmas if you otherwise would like to. He is not going to hurt you when your sister and mother are there supervising him. The problem occurred because your sister left you in charge when he was already in a state and with no/shit instructions. In addition, his father having done a runner just compounds the situation. Utterly appalling behaviour.

Your arm will be OK, I expect a decent bruise will come up and it will take a good few days to go down.

So basically it's all OP's fault? Her niece should just "learn" how to evade physical abuse from her brother? And everyone should just shut up and move along?

I work with people in their 20's/30's who we home as their parent(s) cannot house them due to risk towards them and younger siblings.

The softly/softly approach gets absolutely nowhere in my opinion. We then have to teach them to unlearn the fact they're just given whatever they want to shut them up. Why should his sister have to learn to tip toe around him to avoid being attacked? That's basically installing training into a young girl to prevent being "too abused" by a partner later in life.

MerryAquaSquid · 30/11/2025 22:02

This reply has been deleted

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

EmeraldShamrock000 · 30/11/2025 22:03

Actions have consequences, he should definitely have been made apologise, the outside world isn't going to be do forgiven. She is not doing him any good.
If he can manage a sport, he can manage an apology.

whatsnewpussycat34 · 30/11/2025 22:03

Disco2022 · 30/11/2025 21:53

I'm not sure if anyone else has said this but how could it be so sore that it can't have water over it, and so insignificant that you didn't really think about it or take a photo of it on the night it happened.
I would say don't go to Christmas give the poor child a break from you.

Someone Probably should have said something similar thing to Raoul Moats ex…..the silly girl.

Vivi0 · 30/11/2025 22:04

Leopardsandcheetahsarefast · 30/11/2025 22:01

Ok you know him and I don’t.

My autistic daughter knows what she is doing, as does my ND step son and other children. So yes they need to know this has got an impact.

what if you need stitches or worse?

my best friend works with special needs pupils. All 14 years and above and there is usually 12 children in her room and despite them all needing 1-2-1 they are normally short staffed and she usually has 8-10 staff in her room. She has been punched, kicked, bitten usually once a week. The school has a no sanction policy - none. She has known these children for years and worked with them daily, they can regulate - but she firmly believes after 10 years there that the majority of the behaviour stems from no exclusion policy and no parental sanction policy. Ones who parents do sanction are better.

what if you need stitches or worse?

It’s pretty clear from the photograph provided that the OP absolutely does not need stitches or worse (assuming you mean vaccination).

Arghhhhggggggggggg · 30/11/2025 22:05

Vivi0 · 30/11/2025 22:00

You haven’t even read what I said.

Forcing her sister to deal with her autistic nephew in a way the OP sees fit, rather than what is best and what works for him, is asking her sister to put her before her son.

OP asking her sister to punish her child by taking his tablet or not allowing him to go to a club AFTER he has assaulted her really isn't asking the sister to put OP before the child l. It's asking that there's consequences for his attack.

Teaching him that he doesn't have any consequences or have to apologise for assaulting someone isn't in that boys best interest at all.

Thatsalineallright · 30/11/2025 22:06

GoingForAGallop · 30/11/2025 20:00

I think you need to trust Mum’s judgement on how to deal with her son, she is the expert.

Autistic children thrive on routine and having a different person putting them to bed would be extremely unsettling. I don’t think you should babysit again if you don’t empathize with the difficulties faced. The injury looks very minor, but you seem hell bent on expecting the child to be punished in revenge. Do you not understand that autism is a communication difficulty and this was the child’s way of expressing their upset at the situation. Mum dealt with it well by speaking to him about it. You’ve handled the situation badly, sulking and acting childishly.

Utter rubbish. Mums aren't automatically experts. How else do you explain the mums (and dads) who actively fuck up their kids by being too lenient, too strict, abusive, neglectful, etc.

Netcurtainnelly · 30/11/2025 22:06

IGrewUpInTheFallOut · 30/11/2025 19:31

I just really don’t feel comfortable around him at the moment. I was terrified. He’s nearly the same height as me and physically a lot stronger than I am. He could’ve really severely hurt me

Yes, he could have done alot worse to you.
Probably been on his i pad all evening too, which dosent help.
You dont have to be around anyone that makes you uncomfortable family or not.

IGrewUpInTheFallOut · 30/11/2025 22:06

Arghhhhggggggggggg · 30/11/2025 22:05

OP asking her sister to punish her child by taking his tablet or not allowing him to go to a club AFTER he has assaulted her really isn't asking the sister to put OP before the child l. It's asking that there's consequences for his attack.

Teaching him that he doesn't have any consequences or have to apologise for assaulting someone isn't in that boys best interest at all.

To be honest should I have used those examples? No. But I just want her to do something that signifies she sees how serious it is. At the moment it feels like she’s trying to minimise it as being not that bad.

OP posts:
Vivi0 · 30/11/2025 22:07

whatsnewpussycat34 · 30/11/2025 22:03

Someone Probably should have said something similar thing to Raoul Moats ex…..the silly girl.

Why do you keep making over the top inappropriate and incomparable references on this thread?

Peoplearereallyweird · 30/11/2025 22:07

whatsnewpussycat34 · 30/11/2025 21:59

No, I don’t think this boy is the priority in this situation, at all. Just like i don’t think anyone who is any aggressor in any situation is.

I’m glad your son is doing well, and hope he continues to do so. But your son hasn’t assaulted anyone. This boy has.

I'll be honest, I was worried for a while that he would lash out when he was in mainstream, as he really, really struggled there. He has PDA in addition to being autistic and ADHD and of course, secondary school is full of demands. My son appears NT to most people who meet him, quite often are surprised he is autistic as his masking skills are almost perfect but I see when the mask comes on. I get what he did was awful, I guess it's just hard for me to see some pretty harsh comments against a child who does have a disability that means he's not always in control of his emotions, as I had the same judgements from his previous teachers. Labelled a trouble maker who was "choosing" to behave the way he did. If only they could see the amazing 15 year old he is now and thriving in an environment where he is understood more and helped in a way that works for him. That said, I couldn't/wouldn't brush something like this aside.

IPM · 30/11/2025 22:08

IGrewUpInTheFallOut · 30/11/2025 21:45

It’s really starting to feel like that. Being told i’m exaggerating because it “doesn’t look that bad”, that I’m dramatic and hysterical. I’m really shocked and to be honest a little upset

I think it's the fact you're utterly terrified of him in one breath so can't go for Christmas.

And in another, you're happy to go as long as your sister knocks off a bit of his screen time.

And yes I know you've explained it but it still doesn't make sense as utter terror doesn't tend to work that way.

And you have no idea whether your sister would get involved just because she gave in to your demand for punishment.

IGrewUpInTheFallOut · 30/11/2025 22:08

IPM · 30/11/2025 22:08

I think it's the fact you're utterly terrified of him in one breath so can't go for Christmas.

And in another, you're happy to go as long as your sister knocks off a bit of his screen time.

And yes I know you've explained it but it still doesn't make sense as utter terror doesn't tend to work that way.

And you have no idea whether your sister would get involved just because she gave in to your demand for punishment.

You just don’t want to listen to what I’m saying.

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