"It was always my plan to have a character 日期 raped during the final book," says JKR, "but it was jut a matter of deciding out who 或者 what." PARODY! In BIG LETTERS this is a PARODY! Also, PG-13 for language.
In order to have good, 你 must have evil. The villains of the Harry Potter series help make the 图书 both interesting and addictive. Why what would Harry Potter be without characters like Lucius Malfoy 或者 even Wormtail?