J.S.
What age did this start? Was there a defining situation like a divorce or being bullied? Have you had him evaluated by psychiatrist or neurologist with a neuro-psych evaluation? Have you tried family therapy? Have you contact the Department of Social Services?
I'm sorry there are so many questions but your post is so very vague. Much of what he's doing could be appropriate, or it could depend on and underlying situation or possibly mental health issue or neurological disorder that you're unaware of right now or that you haven't shared.