As I have said before on abbeys, a male teacher at my secondary school gave the whole class including girls the plimsole, this at about 14/15. It would have made a £1M video, the boys including yours truly watched it with fascination as the girls got it after the boys. Never seen so many hands-up skirts, hoping around and crying in my life.
They were all petrified, some were crying just lining up and waiting, it was real justice as they usually found a boy getting the slipper most amusing.
I am working on some of the girls at reunions, who knows what may happen. I drop subtle as sledgehammer hints.