Magic in Harry Potter extraordinarily high turnover of staff members—throughout the series no Defence Against the Dark Arts teacher has retained the post for more than one school year. Harry is exceptionally skilled in this subject. During the period the story takes place, the class is taught by Quirinus Quirrell (book one), Gilderoy Lockhart (book two), Remus Lupin (book three), Bartemius Crouch Jr impersonating Alastor "Mad-eye" Moody (book four), Dolores Umbridge (book five), Severus Snape (book six), and Amycus Carrow (book seven). Hagrid suggests in "Harry Potter and the Chamber of Secrets" that ""They're startin' ter think the job's jinxed. No one's lasted long
Legal disputes over the Harry Potter series Doe. Outside these controversies, a number of particular incidents related to "Harry Potter" have also led, or almost led, to legal action. In 2005, a man was sentenced to four years in prison after firing a replica gun at a journalist during a staged deal for stolen copies of an unreleased "Harry Potter" novel, and attempting to blackmail the publisher with threats of releasing secrets from the book. Then in 2007 Bloomsbury Publishing contemplated legal action against the supermarket chain Asda for libel after the company accused them of overpricing the final "Harry Potter" novel, "Harry Potter and the Deathly