I'll try not to drip feed. A family lives a few doors down our road, 3 boys. The eldest lets call him Adam is one year older than my son, the next lets call him Mason is my son's age, and the youngest 2 years younger lets call him Lenny and same age as my daughter.
My son went to Nursery with Mason, and they are in the same class at school, they've basically been together for 5 years, up until July last year Adam was also at school with both of them. Lenny and my daughter get on just fine without issue.
Mason is a stirrer and a wind up, name caller and general antagonist. He is constantly winding up my son, picking fights. Whenever my son had finally had it and says something back to Mason, Adam appears out of nowhere and beats the living hell out of him, just for something said that 'upset' his brother. We tried again and again to talk to school who said they are very aware of the problem and we're not the only ones complaining but! they keep speaking to the parents who have no issue with the eldest son 'protecting' his younger brothers, and with an attitude like that there is little they can do. Last July Adam went up to senior school and thought the problem would just go away.
My son has put up with a lot and over a fair amount of time and has recently taken to fighting back when Mason hits him etc. His just had enough of laying down and taking it, the school have the same answer as before, the parents have no issue with whatever Mason is doing and worse still, say my son is just as bad for fighting back. My son and Mason had another run in this week, and today while my son was playing outside Adam found him and beat the hell out of him as punishment.
So hear is my AIBU, the parents won't listen and these boys are vicious, my plan is to teach my son basic self-defence, which in essence is block, counter attack (to disable) and run. I think the key here is the counter attack to teach him techniques that do hurt, and might make make these boys think twice. I am in a position to teach him this, but part of me is wary about the aim being to inflict pain on other kids. But I really don't know what else to do, so would be open to any other ideas.