My son has always been kind and never got us worried before. Never had any issues.
We recently relocated and he had to change school. The school assigned buddies to everyone because they had merged two Reception classes and thought that would help the kids settle in.
My son's buddy turned out to be quite bossy: he tells my son off, sends him to do "errands" and so on.
We tried not to pressure my son to much and being supportive because we understand he's going through a big change.
Last week we received a calls from school that he'd thrown a stone into a door and broke the window. He was actually throwing the stone back to a class mate that had missed him. So the outcome could have been worse. My son was very sorry about the broken glass and was sad. We decided not to punish him. We asked what happened and explained why his actions were wrong. The teachers too were quite (maybe too much?) understanding.
Today he's received another note because he slapped another child, without reason. When asked, my son said he doesn't know why he did it. The other child did not provoke him.
Me and my wife don't know how to handle this. As said my son has always been kind and had never hit anyone before.
I'm afraid his new friends are having a bad influence and spoke with the teacher but she replied "let boys be boys". If from one side I agree this will help him handle that kind of people when he gets older, I worry he could end up being violent and bullish.
What should we do?
UPDATE: Turns out my son didn't actually "slap" the other kid. The boy didn't respond to my son's call so he pat him to get his attention. Also I've seen my son throw apricot stones in the garden the other day and he almost hit himself. I asked him to throw a rock and still it didn't go that far. Definitely not enough to break a decent glass door. It looks more and more like the school is excessively strict on small mistakes while failing to address actual bullies.