Bostonian- good point. But we've had two public school teachers now. One was the bully Cola described, and her class was in chaos all the time. She did a fine job of teaching the bullies how to bully! One has a class of 20, explains the reasons for things - to all of them - and has magnificent control over her class. Oh - because she doesn't have to control them. They understand why it's a good idea to follow her instructions.