Thanks momof4! Here I only have a boy his age and he doesn't act like this at all. I had a three year old girl who left last week she started spitting bc he did it and she copied so the behavior is coming from him. Parents say don't know where he picked it up. He used to randomly spit but now it is directed at the adult talking to him.
I have been as firm as I can be with him. He doesn't get away with things with me and he knows this but he still tries as much as he can to push and it becomes a very frustrating time. I used to do timeouts with him and he knew not to do it again and now he keeps repeating bad behavior.
Parent have mentioned that they need to be harder on him and are goin to do it so I hope that that helps. By the end of the day I'm exhausted.