Whenever he is at Geelong Grammar for a function (he seems to visit most times when he’s in Australia) they always make sure there’s cherry brandy available as a joke. He doesn’t seem to find it all that amusing but his statements have seemed to me to confirm there’s truth to the old story. From what I’ve heard HRH was definitely caned when he was at school, but it’s very unlikely that it happened while he was at GGS. He was placed as a senior prefect (virtually in the role of a House Captain) and boys at that level were almost totally exempt from caning (I dreamed of such a role for that reason!)