Quote from : Harry Potter and the Order of the Phoenix Book

Did you like question ten, Moony?" asked Sirius as they emerged into the entrance hall. "Loved it," said Lupin briskly. "Give five signs that identify the werewolf. Excellent question." "D'you think you managed to get all the signs?" said James in tones of mock concern. "Think I did," said Lupin seriously, as they joined the crowd thronging around the front doors eager to get out into the sunlit grounds. "One: He's sitting on my chair. Two: He's wearing my clothes. Three: His name's Remus Lupin...