In the last year of my junior school (1960–61) our class teacher was the senior master, and he kept order in the class by calling disobedient boys out to the front, ordering them to touch their toes, and administering a whack (usually one) with his blackboard pointer.
One day this teacher was supervising school dinners, and one of the boys in our class was mucking about. He was told to touch his toes, and we wondered what would happen — we were in the school hall, and the blackboard pointer was in the classroom. In fact this boy received seven smacks with the teacher’s hand.