Harry Potter and the Goblet of Fire
"[Dudley's tongue] was four feet long before his parents would let me shrink it!"
Harry and the Weasleys roared with laughter again.
"It isn't funny!" Mr. Weasley shouted. "That sort of behavior seriously undermines wizard-Muggle relations! I spend half my life campaigning against the mistreatment of Muggles, and my own sons –"
"We didn't give it to him because he's a Muggle!" said Fred indignantly.
"No, we gave it to him because he's a great bullying git," said George. (5.13-7)
"Don't tell me you don't know?" [Malfoy] said delightedly. "You've got a father and a brother at the Ministry and you don't even know? My God, my father told me about it ages ago ... heard it from Cornelius Fudge. But then, Father's always been associated with the top people at the Ministry ... Maybe your father's too junior to know about it, Weasley ... yes .... they probably don't talk about important stuff in front of him ..." (11.109).
[Ron] forced Hermione to show Snape her teeth – she was doing her best to hide them with her hands, though this was difficult as they had now grown down past her collar. [...]
Snape looked coldly at Hermione, then said, "I see no difference."
Hermione let out a whimper; her eyes filled with tears, she turned on her heel and ran, ran all the way up the corridor and out of sight. (18.87-9)