i woke up an hour ago to a loud thump and voices yelling. it was my sister and dad fighting. this wasnt the occaisional yelling and screaming. this time it had another factor. my dad was grabbing my sisters face and shaking it around and then picked her up and pushed her into the wall. my dad used to hit my sister when we were really little and he got arrested for it but we all thought that chapter was over in our lives. now my dad is very italian and has a very bad temper but my older brother just tells us all to do what he says and if we dont like something he does, to suck it up and move on. when it comes to hitting my sister, i have no idea what to do. i didnt call the police cuz i didnt want to cause a sence or mess up our living arrangments, but i wanted to call them so bad. i called a friend and texted my older brother but nothing helped. i feel really bad for my sister and wish we didnt have such fucked up parents. it cant all my parents fault. there has to be some blame on me for being a losy kid. i really dont know what to do. can anyone help?