When it was over you were told to go and you joined back in with the collective PE. Everyone of course knew why you’d been absent and brave souls would display their backsides in the changing rooms and compare notes on the accuracy of the shooting. Some boys claimed that the Head looked under their shorts to see if they were wearing underpants but that never happened to me.
It was impossible not be caned at some stage and the only boy I only ever knew, one pupil who managed to escape this punishment was regarded as a complete wimp.