My son is 5 years & 9months old he is a little hiper active in nature. he doesn't stay at one place for a long time. he doesn't like to do anything that he is asked to do. , his studies., meals etc. he never respond whenever we call him...he always stays busy in watching cartoons or playing vedio games ect. ... he feels irritated whenever he is asked to do something or anything he doesn't want to do. if forced he screams or shouts like hell or bites his teeth.....what should I do to control him or bring him in discipline. ?