At a school I used to work at, a teacher only avoided horrendous - potentially career-ending - consequences because a pupil happened to witness two other boys knuckle-hitting (ie, punching with a knuckle protruding) each other in the chest in the spots where said teacher had prodded both of them with his index finger whilst chastising them. They were planning on putting in complaints in revenge for his giving them each a well-deserved detention. I worked with one of the pupils in question and he…