Search Results: treating guys bad

He hits our sister, calls her a man and a lesbian because she has a cute little pixie cut, tells her no man would ever love her, that she looks like a hippo, he yells at our dad that he is a "Fat, stupid, butthead", he attacks me, he tells our mum horrible things like she is a "old hag/bat", and that he hates her. He does not have a drug/alcohol issue, the core of the problem seems to be his computer addiction. His temper is just terrible, he is 16 but might grow out of it. Our parents don't really say much about it though. They do take away his computer for periods of time and that sends him into a cray meltdown. He is a good guy underneath but I have been thinking about when he gets married, will he treat his wife and kids this way? If he carries on like this, should I warn his girlfriends what he is like or would that be totally out of line? I have tried talking to him, he listens but then flies into a fit when his computer gets involved and just abuses our sister in general. I mean, I can be kind of rude and can swear a bit but I never like say hurtful things and it is never unless they flipped out at me first. He always does it just because someone annoys him or in the case of my sister, just because she exists. When I am angry, I never get violent. I pretty much never have temper issues. Does anyone else have experiences like this? Can anyone help? I am not asking for myself, I am fine. It is mainly for my sister and the future women who I could see him treating the same and beating. And no, he does not have some girlfriend now that I want for myself so I am going to bad mouth him. Our taste in women is so different.