Hogwarts staff of the Marauder's Map (the Weasley twins, Harry, Ron and Hermione), and Voldemort himself. He tends to favor almost sadistically harsh punishments, and gleefully allies himself with Umbridge when she prescribes such punishments on students. He has an obsessive dislike of mud, animate toys, and all other things that might interfere with his desire for an immaculately clean and orderly Hogwarts. He is also portrayed as having a constant antagonism towards Peeves the poltergeist and often tells Dumbledore that Peeves should be thrown out of Hogwarts. He also likes to wander Hogwarts corridors at night, presumably in the hope of
Hogwarts staff and later fired. However, Professor Trelawney continues to reside in Hogwarts castle due to an order by Dumbledore, who believes that she would be in danger outside Hogwarts due to the prophecy she made during her interview. Dumbledore later reveals that the prophecy is why he keeps her employed as a Divination teacher. Professor Trelawney returns to teaching in "Half-Blood Prince", but has to share classes with Firenze, as he was cast out by his fellow centaurs when he agreed to replace Professor Trelawney after she was fired, which she thinks is an outrage. In "Harry Potter and the Deathly