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“Why are you worrying about YOU-KNOW-WHO, when you should be worrying about YOU-NO-POO? The constipation sensation that's gripping the nation!”
― J.K. Rowling, Harry Potter and the Half-Blood Prince

“You could say sorry," suggested Harry bluntly.
"What, and get attacked by another flock of canaries?" muttered Ron.
"What did you have to imitate her for?"
"She laughed at my mustache!"
"So did I, it was the stupidest thing I've ever seen.”
― J.K. Rowling, Harry Potter and the Half-Blood Prince

“Mistletoe," said Luna dreamily, pointing at a large clump of white berries placed almost over Harry's head. He jumped out from under it.
"Good thinking," said Luna seriously. "It's often infested with nargles.”
― J.K. Rowling , Harry Potter and the Order of the Phoenix

“Harry was left to ponder in silence the depths to which girls would sink to get revenge.”
― J.K. Rowling, Harry Potter and the Half-Blood Prince