Just that really. She is rude, disrespectful, horrible to her 8 year old sister and by horrible I mean really cruel. She is so rude to us and flies off the handle at the slightest thing. I know that hormones are probably to blame but myself and dh are really at a loss how to deal with it. We are all off on a two week holiday soon and the thought of spending two weeks with her the way she is at the moment is filling me with dread! I have tried talking to her, taking her I pad away etc but nothing is really working for any length of time. I understand that she is probably struggling and it's due to her age but we really can't let this behaviour continue as it is. Please help!