Hey, I had a boy in care for over 3 years that I called the Drama King! He put on Oscar winning performances for his parents every morning and every evening but all day he followed my rules and behaved and knew what I expected from him in the way of good behaviour. He went through stages where he would stop for a while then he would start up again. I tried and tried to give the parents good tips about expecting better behaviour from him, but there's only so much we can do. As long as they are behaving well all day at daycare, that's the important part. I feel for you!