I wonder if this was common practice. When you were about to be punished, in anticipation of the agony of caning on the bottom, did anyone bite into something like a piece of leather strap or similar? Or were you offered? I’m only guessing with the pain that was about to be administered, it would be helpful to dig your teeth into something rather than grind them together! I don’t know if this would sufficiently deaden the howls either, though!
It seemed a very old-fashioned idea I think .you have seen it in old films when men were about to be whipped.I saw a version of tom browns schooldays on the BBC in the early seventies where tom brown was flogged and he literally got the bit between his teeth.