Have you ever seen anything quite as pathetic?" said Malfoy. "And he’s supposed to be our teacher!"Harry and Ron both made furious moves toward Malfoy, but Hermione got there first - SMACK!She had slapped Malfoy across the face with all the strength she could muster. Malfoy staggered. Harry, Ron, Crabbe, and Goyle stood flabbergasted as Hermione raised her hand 
J.K. Rowling, Harry Potter and the Prisoner of Azkaban
bold, harry-potter, hermione-granger, malfoy, ron-weasley