Go to juvinial court and sign a patition for unruly child. If she keeps going she will have you in court anyway. It,s better if you do it yourselves than to wait for her to do it to you! If she lands you there than a lot of the times the judge blames you for not doing anything. They,ll look at school records, everything that can be drug up on her will be. That,s how they know if it,s been a problem for a while. If you just seed her to a foster home,that is just saying i dont want you. Let her know your not going to stand for this kind of behaver but, you love her. Besides you have to love her after all you married her dad. That is a packaged deal. She might just have issuse and with the right kind of help and counciling she may turn out to surprize you. She needs help,so she doesn,t end up dead on the drugs she,s putting in her body. Don,t be a quitter & just seed her away!