The Slipper was the main form of Corporal Punishment used at my Boys Catholic Secondary school. If you misbehaved in class or around the school a teacher or prefect would fill in a Reference Slip and that went to your Housemaster and you had to report to him at the end of the school day, for a slippering which was always 6.

PE and Games-masters also slippered at my school and any infringement of rules during a PE or Games session meant that you had to stay behind at the end of the session and face the wall bars bend over and grab one of the bottom rungs for 6 hard whacks with the Plimsoll.