difficult child used to love his little sister. In fact, he played with her more than with easy child#1, who is only one year older than him. Last winter that changed and he started hanging out with easy child 1 and his friends, and he started to be mean to his sister. He's been threatening her, pushing her, hitting her and correcting her constantly. We've been really on him to stop for the last few months. I noticed last week that it has improved dramatically. Not perfect, but a very dramatic change. This weekend, I noticed he was becoming more physical with me, and gets more angry at me for having him do little things, like let his dog out or get his laundry off of his floor. He's been pushing my shoulder with his hands as he goes by me, and hit me on the arm once (not enough to hurt, but enough for me to know he was mad at me). Last night, he came after me in anger and I thought he was going to try to push me to the floor, but he stopped himself. He did give me a slight chest bump but then turned to walk away, yelling and calling me names the whole time. So he has to have one person to channel all of his anger at?