That's one of those absolute bull:censored: decisions, using my best south park voice "harmless retaliation is bad, much worse than serious foul play'. It's a nonsense and if it's a real rule it wants binning. Same thing happened in a game I played in yesterday, opposition player retaliated mildly, the only person on the pitch who thought he should be sent off was... the referee. Killed the game. Sometimes the law is an Ass.