Was he the one that took games wearing wellies ?
Didn"t do football though really.
Egg was Bob Dudley-Jones mainly for me, sometimes a Geography or thinking about it it might have been a History teacher that wore wellies.
Gym was some sadist that used to play hockey for Wales whose idea of a gym lesson was to line you up against the wall bars in just shorts & hit a hockey ball at you as hard as he could.
Had his come uppance when 2 boys I knew bumped into him in the Butchers Arms Rhiwbina when they were about 17 & had left school.
Took great pleasure in showing him the error of his teaching ways in the car park