Yasmin

“Well, I certainly don't," said Percy sanctimoniously. "I shudder to think what the state of my in-tray would be if I was away from work for five days."
"Yeah, someone might slip dragon dung in it again, eh, Perce?" said Fred.
"That was a sample of fertilizer from Norway!" said Percy, going very red in the face. "It was nothing personal!"
"It was," Fred whispered to Harry as they got up from the table. "We sent it.”
― J.K. Rowling, Harry Potter and the Goblet of Fire

“Harry!" said Fred, elbowing Percy out of the way and bowing deeply. "Simply splendid to see you, old boy-"
"Marvelous," said George, pushing Fred aside and seizing Harry's hand in turn. "Absolutely spiffing."
Percy scowled.
"That's enough, now," said Mrs. Weasley.
"Mum!" said Fred as though he'd only just spotted her and seizing her hand too. "How really corking to see you-”
― J. K. Rowling, Harry Potter and the Prisoner of Azkaban

“From now on, I don't care if my tea leaves spell 'Die, Ron, Die,' I'm chucking them in the bin where they belong.”
― J.K. Rowling, Harry Potter and the Order of the Phoenix

“I hope you're pleased with yourselves. We could all have been killed - or worse, expelled. Now if you don't mind, I'm going to bed.”
― J.K. Rowling, Harry Potter and the Sorcerer's Stone