Parents too cheapskate to give them adequate allowances so they rob, steal, lie, practice criminal conspiracies, starve, get pissed at others who get good family-source entitlements. Feels inferior. But he has one talent. Fighting and beating up people. Lacks brains to realize the victim can call the cops. Need to sit down with him and get a deep peek into his life situation and take corrective actions if they are possible. Must also pay back twice or three times the amount of money he stole. Do community service, stand in a closet room corner for one hour, or wear a clown or girl's hula skirt suit and stand on a busy street facing the morning commuters for a day. Teach him shame.