I have read the posts and I gotta say it's no consulation that I am not alone in the behavorial problems that I am having with my son. My greatest fears have been realized in your posts. My son does most of the things noted and I am at my wits end because I don't know where it's coming from or how to curtail it. I am a single mother of a 4yr old boy that is displaying very aggressive behavior, border line violent. He is in his second pre-school setting. The first one, I thought had issues of their own, but now the second one makes me think that everyone can't be crazy. He has now been expelled from both. Both mentioned the same behavior, but what is frustrating for me is neither could tell me what provoked the behavior. I got the feeling that they assume this is how he behaves at home, he does not. When I ask him why he acts this way when he knows he will be punished for it, and he does, he tells me because he really wanted to be with mommy. Punishment is taking away toys, not being able to look at his DVDs, timeouts, and spanking. None of that seems to be working. I have taken him to his pediatrician, and had him tested for anything that could be physically related, they found nothing. Took him to program specifically designed for this only to be told that there was nothing irregular found in his evaluation. I am not professionally qualified to dianose my son, but as a mother I think he is displaying this type of behavior because he is angry. Which concerns me even more because, really, what does a 4yr old have to be angry about. I guess my question is, where do I go from here?