If this would have happened to me I would have calmly just took my child to the office withdrew him or her and put them in a private school. Oh wait my wife and I have already decided to put our children in private christain (possibly Catholic) schools from the get go.
That would be the ideal answer, however, this was in a very small town with only one school and no private schools. Home schooling was really an option at the time like it is now.