Son took daughter's diary into school and showed around

[Pregnantabroad]

I've found out that my Y6 son took my Y4 daughter's diary into school today and showed it around. He doesn't know that I know yet. Any thoughts on how I should deal with it? Hands down it is a major invasion of privacy, very sneaky and mean but I don't know which diary he took (she has a few and is not a particularly avid diary keeper).
Thanks!

It doesn't matter which one he took and it is way more than invasion of privacy.
If he had read it at home, then yes, it would have been invasion of privacy, but taking it to school and showing it around, that was mean.

I would remove his room door for a week, so he learns what privacy means, and of course, if he has a phone/tablet/game console, this is gone too for the week.

Thank you. I think that is a good suggestion. I like that you relate the punishment to privacy. Removal of the X box goes without saying too.

Ooof that is really bad. The kind of thing she'll hate him into adulthood for.

How did the punishment go?

I'd spend some time on working out what his motivation was too. Why does he want to humiliate his little sister? Is he jealous / competitive with her? This could escalate dreadfully if not properly dealt with now. By a counsellor maybe?

Patriarchal shit like this needs to be shut down immediately.

Update on this. Turns out he didn't actually take it to school. He showed it to a friend when the friend was around at our house. Still not great but at least he didn't take it into school! He has written an apology letter and is having his bedroom door removed for a week.

This is very different. Well done.

Removing his door 😂 seems a bit abstract from the original wrong doing. All he'll remember from this is you taking his door away.. which isn't the message you're trying to give.

It was suggested on this thread and I thought it was a good idea. It's a privacy related punishment. And it's memorable.