" That boy’s a terror,” continued Mr. Renshaw, pointing after him. “He’s not mine, understand—he’s my second wife’s by an earlier marriage. My lad’s quite different—fine young chap of twenty-five—accountant in Birmingham—settled down very nicely, he has. But David … well, it’s my belief there’s bad blood in him somewhere.” Chips went on listening—there was nothing else to do. “Been sacked from two schools already … a proper good-for-nothing, if you ask me. "

― James Hilton , To You Mr. Chips: More Stories of Mr. Chips and the True Story Behind the World's Most Beloved Schoolmaster