I think the first time getting the belt was more frightening than later because at first you did not know what was coming, also some teachers laid it a lot harder that others and I soon learned when to be on my best behaviour. I remember a female maths teacher who was quite short and very skinny, and boy she was viscous with the belt, I did get four of it from her once.
All punishments in the schools I went to in Scotland were given on the hand, but a tennis pump on the bottom could not have been too sore eh? I was in an all girls class and yes some did make a bit of a scene before getting belted and they were usually taken out into the corridor, but we could still hear the strokes.