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
Enfield Poltergeist duped. The psychical researcher Renée Haynes had noted that doubts were raised about the alleged poltergeist voice at the Second International SPR Conference at Cambridge in 1978, where video cassettes from the case were examined. The SPR investigator Anita Gregory stated the Enfield poltergeist case had been "overrated", characterising several episodes of the girls' behaviour as "suspicious" and speculated that the girls had "staged" some incidents for the benefit of reporters seeking a sensational story. John Beloff, a former president of the SPR, investigated and suggested Janet was practicing ventriloquism. Both Beloff and Gregory came to the conclusion that Janet