squirt - i cannot add much to the other excellent advice here, but i wanted to add my e-hugs. We are going through a spell of bad behavior here, too, though not to the extent of yours. We are blaming it on changes related to having to go to back to preschool, but haven't yet been too successful in changing the bad behaviors yet. I feel like we're always on the defensive "that behavior is inappropriate" etc. I have to remind myself to find a time to catch him being good.