I    got one classmate in our highschool. He seems to be great    guy,sometimes  funny but also he likes to bully people. He dont have any    friends  really in our class. He is pushed away by everyone. I was   with  him alone  and we talked a little and he seems nice when nobody is    around. He  likes to do this things like screaming,making funny    voices,faces making clown of himself when people  tell him to do it in    class just so he can get attention and laugh. I  dont know if he  realize   that people just laugh at him or he just does  not care and he  is just   happy to be seen and have at least some  attention in our  school. I  pity  him. I can see he crave that attention at every cost no  matter how  clown and stupid he will look. I heard his parents are  abusing him   verbally and they dont give  him affection. Maybe that is  the reason why   is he like that. I dont know  if he have some   personality disorder or  something because he can be  great but it just takes little for him to be angry douche  who is provocating or being  arrogant. He also steals money from other kids,wanna fight everyone,laugh at immature things,talk only about himself to the point iam sometimes bored and i want to him to go away but he just continues. What can   be wrong with him and  how to help him ?