They just bring their bullying dad over to kick your azz.
I think Milwaukee doesn't really allow kids to change school in the middle of the school year unless they're going to a worst school than the one they're in already.
Then things can get ugly. Kids giving your son a black eye, that's not an assault. That's just means to bring the parents together for a public shaming moment as they scold their bad child. Then again, it can be scripted. Like that time I stood in for my cousin's at school to represent his guardian. Told kid I am going to act it out and for him to pretend to cry. Do that or face expulsion.
We went n had ice cream right away. All charges dropped. Well played.
If parents gets involved, I'm bringing in my lawyer n we go fly high, you know this.