when I was 9 I went to a mixed school in the late 50s.
The headmistress caned senior girls, there were no boys in the secondary just in primary school I was on an errand for a teacher I saw two girls 15yr olds standing outside the office.
The first girl was always in trouble her friend looked pale and fidgety the taller blond said well get the cane for sure I’m up for six after last time the friend said ill get 4.
Just then the door opened and the smaller one was called in I heard voices then the swish of the cane and yells of pain 4 strokes
the door opened and she came out holding her backside her face was red.
The taller girl went in and again i heard the cane but no noise until the 5th stroke then a yelp followed by a loud groan.
She came out both hands down her knickers her friend asked if she was ok she said my arse is on fire I wont be able to sit for days they walked away I was mesmerized