I Agree with clips it is all in upbringing.Many times, you see kids doing exactly what the parents are doing. When i was in junior high there was one kid who would come to class all bruised. His dad drank and would beat up him and his mom. Turned out his dad just did what his dad would do. Then one day this kid dissapeared. Found out he pulled a lizzy borden on his dad. Came back to school about 8 months later, i got up the courage to talk to him.Said he just got tired of seeing his mom in tears, so he protected her. As far as i know he is married has kids and has a great life.