A scrap between two boys at school led to one woman kicking, punching and pulling the hair of one of the children’s mothers in front of other youngsters. Chelsey Knox “saw red” when she heard about the playground punch-up and not only attacked the woman, leaving her with cuts and bruises, but also followed her from the school in Longfield in her car, and flashed her down while honking her horn until the woman pulled over. As both women got out of their vehicles near a roundabout, Knox attacked the other woman who had been trying to stop her from getting to her son who was still in her car. The…