should I tell someone???

ok it he abuses her at all tell someone asap!! And if he does not abuse her then tell the school councelor!! But just be a great friend sshe needs you right now :) cierra!!!

This is child abuse! you should try and convinse her to talk to someone there are loads of places hwere she can talk to some in confidence.. theres always child line. - I think its 0800 555 or something im not sure but theres always connections there a company that give advise to teenagers about anything including child abuse - she could talk to someone online at home or school! and you dont even have to give you name out . http://www.connections-direct.com

yes, tell a counsellor and if possible, any other relatives she has what her patrenst are doing is child abuse while most of its verbal its still abuse things like swearing at kids, tyelling at them all the time and insaulting them by calling them fat can be extreemly dangerouse, causing depression and even thoughts of suicide to the kids involved its abuse, and it needs to stop also if he really did throw a kniffe at her you need to get the police involved and tell her to try and stay with relatives or friends or a while to get out of the house

Speak to a competent adult about the situation to determine what is best.