 Though not a slipper in the usual sense of the term, the implement used was invariably referred to as "the slipper" by teachers and pupils alike, presumably on account of its similarity to the type of carpet slipper used for parental punishments.The slipper was also widely used to enforce discipline outside lesson time within the boarding houses of boarding schools, especially preparatory schools.This "informal", on-the-spot type of discipline was typically not recorded in the official punishment register, as it was not seen as sufficiently serious to be classified as real corporal punishment.