Terry Pratchett said this quote

Ridcully sighed.'All right, you fellows,' he said. 'No magic at Table, you know the rules. Who's playing silly buggers?'The other senior wizards stared at him.'I, I, I don't think we can play it any more,' said the Bursar, who at the moment was only occasionally bouncing off the sides of sanity, 'I, I, I think we lost some of the pieces...