There is a boy in my first grader's class who also dances when he is agitated. Thanks to the attitude of the teacher and school the other students know that he is simply using a calming technique and they accept it and carry on with their work. When people accept and understand others differences what could be seen as disruptive simply becomes part of the school day. I feel really lucky that my kids are being exposed to all kinds of people and learning to accept them. Nice post.