“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.”
“If someone has a gun and is trying to kill you, it would be reasonable to shoot back with your own gun. Not at the head, where a fatal wound might result. But at some other body part, such as a leg.”
“Can I cut off your head?" "Are you asking for my permission?”
“Your heart has to let your head know what it wants.”
“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!”