My DS is 4 and just started full time school. When I ask him to get dressed, clean teeth, go to bed etc. he won't do it and when I say well you won't do this or that etc. if you don't do as I ask he will throw stuff at me and kick and hit me. I put him in his room and he will kick the door and scream! Now this happens about 2-3 times per week and it's beginning to really worry me. Any advice anyone or is this normal 4 y o behaviour trying to push boundaries?