Dolores Umbridge then turns an outdated writing tool into torture in Harry Potter and the Order of the Phoenix, forcing Harry Potter to carve “I must not tell lies” into his own hand. She occupies a girls’ bathroom in Harry Potter and the Chamber of Secrets, laughs after Hermione Granger’s Polyjuice Potion accident, and later joins Harry Potter during his bath in Harry Potter and the Goblet of Fire. Harry Potter sees his childhood humiliation, while Severus Snape later catches Harry Potter inside the Pensieve and discovers that his own painful memories have been exposed. Luna Lovegood handles the system beautifully in Harry Potter and the Deathly Hallows, solving the phoenix-and-flame riddle while Harry Potter searches for Rowena Ravenclaw’s diadem. In Harry Potter and the Half-Blood Prince, Ron Weasley eats chocolates intended for Harry Potter and becomes obsessed with Romilda Vane.