Mine maybe removed from the gifted class where he is b/c he doesn't do reg class work. I have also noticed that he will answer some times in a very flat voice as if saying Duh I'll talk slow for you so you understand. He is not overtly saying it but the meaning is there. The teachers think he as poor affect in his voice. I think its his way of putting them down. It is interesting that all our kids are about the same age/grade. They are definitly testing limits and recognizing what is happening. I did inform mine that being smart is no excuse for rudeness. Rather it should be the other way around.