Ok so I have a friend who's a few years younger than me. He's adopted, and his biological mother was on alcohol (and perhaps some stronger stuff) before he was born. Among other problems, he's always been extremely violent. And his filter is non-existant, he says whatever is on his mind, which is often violent, provocative, or threatening. Anyway, I kinda thought martial arts would be good for him. It would give him a chance to practice punches and kicks and take downs. Since he throws threats left and right, sparring might teach him the consequences of what he says. Also, it'd be a good chance for him to get out his extra energy/violence in a safe(r) environment. He actually went to the studio I go to for a few months, but stopped coming. I wasn't sure why he left, but I think his mom is considering letting him come back Any thoughts?