I along with three other girls and several boy was caught playing in the schools old WW2 air raid shelters, which were strictly out of bounds.
We were marched down to the Headmistresss office and lined up outside her door, whilst the teacher informed her of our misdeeds As there were to many of us to all get in her office, she came out and gave us a real telling off in the corridor. Then we were taken in one at a time and given the slipper, which was in fact an elasticated plimsoll, which was commonly referred to as The Pump