Top 7 Harry Potter Insults

This list was hard to make... And I'm sure I missed a bunch of amazing burns, but here you go @mattnonsense
  1. "Twitchy little ferret, aren't you, Malfoy" -Hermione to Draco (GoF)
  2. "At least no one on the Gryffindor team had to buy their way in. They got in on pure talent!" -Hermione to Draco (CoS)
  3. Scrimgeour: "Are you planning to follow a career in Magical Law, Miss Granger?” Hermione: "No, I’m not, I'm hoping to do some good in the world! (DH)
  4. Dudley: "They stuff people’s heads down the toilet the first day at Stonewall. Want to come upstairs and practice?" Harry: "No, thanks. The toilet's never had anything as horrible as your head down it—it might be sick." (SS)
  5. Uncle Vernon: "What were you doing under our window, boy?" Harry: "Listening to the news. Uncle". Vernon: "Listening to the news! Again?" Harry: "Well, it changes every day, you see. " (OotP)
    This one is more sassy I suppose...
  6. Umbridge: "I’m terribly sorry to contradict you Minerva, but as you will see from my note, Harry has been achieving very poor results in his classes with me." McGonagall: "I should have made my meaning plainer. He has achieved high marks in all Defense Against the Dark Arts tests set by a competent teacher." (OotP)
  7. ‘Is it true that you shouted at Professor Umbridge?’ 'Yes,’ said Harry. 'You called her a liar?’ 'Yes.’ 'You told her He Who Must Not Be Named is back?’ 'Yes.’ Professor McGonagall sat down behind her desk, frowning at Harry. Then she said, 'Have a biscuit, Potter.’ (OotP)
    Again this is a little different but I love this scene!!! Also I ran out of space to format it properly so hopefully this is readable,