Anyplace But Here
Harry paused and took a breath. "Mandy is none of your business, sir," he said, working harder now to keep his tone calm. "And she is not to be a topic for you to use to express your dislike of me. I know," he said, turning, "that you hate my Dad. And Sirius. And fine, sure, you must have your reasons, but you give me endless shit for NO reason at all. None. There are far stupider people than me in our year, yet you don't spend your precious time trying to make them feel small, do you?"
He turned back, muttering something that sounded suspiciously like "get over it, already."