Alex

“Don’t put your wand there, boy!” roared Moody. “What if it ignited? Better wizards than you have lost buttocks, you know!” “Who d’you know who’s lost a buttock?” the violet-haired woman asked Mad-Eye interestedly. “Never you mind, you just keep your wand out of your back pocket!” growled Mad-Eye. “Elementary wand safety, nobody bothers about it anymore . . .” He stumped off toward the kitchen. “And I saw that,” he added irritably, as the woman rolled her eyes at the ceiling.”
― J.K. Rowling, Harry Potter and the Order of the Phoenix

“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

“So light a fire!" Harry choked. "Yes...of course...but there's no wood!" ...
"HAVE YOU GONE MAD!" Ron bellowed. "ARE YOU A WITCH OR NOT!”
― J.K. Rowling, Harry Potter and the Sorcerer's Stone

“Why were you lurking under our window?"
"Yes - yes, good point, Petunia! What were you doing under our windows, boy?"
"Listening to the news," said Harry in a resigned voice.
His aunt and uncle exchanged looks of outrage.
"Listening to the news! Again?"
"Well, it changes every day, you see," said Harry.”
― J.K. Rowling, Harry Potter and the Order of the Phoenix