Wow thanks everyone. Yes this child is an only child. I do give the kids one on one special time. I find with him it does'nt seem to help cause the bitting occurs again. I like the idea of a playpen for a time out. My current time out does not seem to be working well so thank you for that idea. As for shadowing him that will be tough so I may have to do the booster chair often. This child does'nt really play with other children, his parents had told me that. They were hoping being at daycare would help him with that. He is never angry when he does anything aggressive, he just seems to get the idea in his head then attack while smilling and laugh after.