May

“Mr. Moony presents his compliments to Professor Snape, and begs him to keep his abnormally large nose out of other people's business.
Mr. Prongs agrees with Mr. Moony, and would like to add that Professor Snape is an ugly git.
Mr. Padfoot would like to register his astonishment that an idiot like that ever became a professor.
Mr. Wormtail bids Professor Snape good day, and advises him to wash his hair, the slimeball.”
― J.K. Rowling, Harry Potter and the Prisoner of Azkaban

“I solemnly swear that I am up to no good.”
― J.K. Rowling, Harry Potter and the Prisoner of Azkaban

“Don't talk to me."
"Why not?"
"Because I want to fix that in my memory for ever. Draco Malfoy, the amazing bouncing ferret...”
― J.K. Rowling, Harry Potter and the Goblet of Fire

“I'm Draco Malfoy, I'm Draco, I'm on your side!"
Draco was on the upper landing, pleading with another masked Death Eater. Harry Stunned the Death Eater as they passed: Malfoy looked around, beaming, for his savior, and Ron punched him from under the cloak. Malfoy fell backward on top of the Death Eater, his mouth bleeding, utterly bemused.
"And that's the second time we've saved your life tonight, you two-faced bastard!" Ron yelled.”
― J.K. Rowling, Harry Potter and the Deathly Hallows