Happily as far as I’m aware he never did, and apart from some slight collateral damage from the passing wooden shaft as it oscillated in flight the victims all escaped scot free, which was doubtless his intention anyway.
One one occasion he launched the pole at a lad at the back of the class sitting by an open window. As it left his hand the stately figure of the Headmaster was observed through said window, proceeding along the path beneath the window and thus inevitably on his way to visit this classroom, which was the only place the path led.
Happily the Head glanced neither to right nor left as the pole sailed through the air, missed its intended target as usual, shot out through the window and embedded itself quivering in the border beyond the path and behind the Head who incredibly didn’t seem to notice.