Imagine your child, Johnny, calling you from school, asking you to come join him at the principal's office because he is in trouble. Your child has been sent to the principal's office for hitting a classmate in the nose. You are furious. As you are driving to the school you think to yourself, "there is no excuse for hitting another person." When you arrive at the school, your child explains that his classmate "hit him first." It seems that they were fighting over a popular toy when Johnny was hit by another boy. Your Johnny got mad and p ....