"[On Foot's housemaster at Shrewsbury School (1952–1955)] Trench made his name as a great innovator, especially in corporal punishment. He would select certain younger boys for special tuition in Greek prose, in which he was a recognised scholar. Less than three mistakes and a bar of chocolate; more than three a beating. But Trench was no ordinary flogger. He would offer his culprit an alternative: four strokes with the cane, which hurt; or six with the strap, with trousers down, which didn't. Sensible boys always chose the strap, despite the humiliation, and Trench, quite unable to control his glee, led the way to an upstairs room, which he locked, before hauling down the miscreant's trousers, lying him face down on a couch and lashing out with a belt. He achieved the rare distinction of being hated and despised by every boy who came in contact with him, and was therefore an obvious choice to be the youngest ever headmaster of Bradfield, and then of Eton. At Eton he made the mistake of whipping the heirs of earls as though they were run-of-the-mill manufacturers' sons at Shrewsbury or Bradfield. One sensitive young viscount limped home and bared his tattered bum to his outraged father. Trench was sacked. He was appointed headmaster of Fettes."