“What would your head have been doing in Hogsmeade, Potter?" said Snape softly. "Your head is not allowed in Hogsmeade. No part of your body has permission to be in Hogsmeade.”

“They make a fuss about Hogsmeade, but I assure you, Harry, it's not all it's cracked up to be. All right, the sweetshop's rather good, and Zonko's Joke Shop's frankly dangerous, and yes, the Shrieking Shack is always worth a visit, but really, Harry, apart from that, you're not missing anything.”

“The exceptions were two men a little ahead of them, standing just outside the Three Broomsticks. One was very tall and thin; squinting through his rain-washed glasses Harry recognized the barman who worked in the other Hogsmeade pub, the Hog’s Head. As Harry, Ron, and Hermione drew closer, the barman drew his cloak more tightly around his neck and walked away, leaving the shorter man to fumble with something in his arms. They were barely feet from him when Harry realized who the man was.“Mundungus!”

“Do you know what I think, Potter?' said Snape, very quietly. "I think that you are a liar and a cheat and that you deserve detention with me every Saturday until the end of term. What do you think, Potter?”

“She should've interviewed Snape," said Harry grimly. "He'd give her the goods on me any day. "Potter has been crossing lines ever since he first arrived at this school...”

“You are determined to hate him [Snape], Harry,” said Lupin with a faint smile. “And I understand; with James as your father, with Sirius as your godfather, you have inherited an old prejudice. By all means tell Dumbledore what you have told Arthur and me, but do not expect him to share your view of the matter; do not even expect him to be surprised by what you tell him. It might have been on Dumbledore’s orders that Severus questioned Draco.”

“Detention, Saturday night, my office,” said Snape. “I do not take cheek from anyone, Potter . . . not even ‘the Chosen One.’”