If it was just the kids involved, then the boy needs to whoop the bully next time he misbehaves.

Unfortunately, with the mother involved the problem is a lot more complicated and dangerous. I think the only way to combat this is through the school and police, then take all other measures to stay away from these people. The mother may be capable of anything, so its worth avoiding them as best you can. Maybe not the macho thing to do, but it could save someone from harm.


[Linked Image from i.imgur.com]