My son came home from school upset because when he went swimming with the school the swimming instructor whacked him on the head with 2 floaters.My son told me that he was stood by the pool and that the woman was telling the class off and then she whacked him and another child on the head.I have made a complaint to the leisure center about this person and also to the school.But the school seems to be not taking it seriously.I have said that if my son was naughty i dont have a problem with him being told off but the woman should not have hit him on the head.My son is only 8 years old.What should the school do in this situation ?