Shadow

“Fred and George, however, found all this very funny. They went out of
their way to march ahead of Harry down the corridors, shouting, "Make way for
the Heir of Slytherin, seriously evil wizard coming through ......

Percy was deeply disapproving of this behavior.

"It is not a laughing matter," he said coldly.

"Oh, get out of the way, Percy," said Fred. "Harry's in a hurry."

"Yeah, he's off to the Chamber of Secrets for a cup of tea with his fanged
servant," said George, chortling.

Ginny didn't find it amusing either.

"Oh, don't," she wailed every time Fred asked Harry loudly who he was
planning to attack next, or when George pretended to ward Harry off with a large
clove of garlic when they met.”
― J.K. Rowling, Harry Potter and the Chamber of Secrets

“Who're you going with, then?" said Ron.
"Angelina," said Fred promptly, without a trace of embarrassment.
"What?" said Ron, taken aback. "You've already asked her?"
"Good point," said Fred. He turned his head and called across the common room, "Oi! Angelina!"
Angelina, who had been chatting with Alicia Spinnet near the fire, looked over at him.
"What?" She called back.
"Want to come to the ball with me?"
Angelina gave Fred a sort of appraising look.
"All right, then," she said, and she turned back to Alicia and carried on chatting with a bit of a grin on her face.
"There you go," said Fred to Harry and Ron, "piece of cake.”
― J.K. Rowling, Harry Potter and the Goblet of Fire

“Did you like question ten, Moony?" asked Sirius as they emerged into the entrance hall.
"Loved it," said Lupin briskly. "Give five signs that identify the werewolf. Excellent question."
"D'you think you managed to get all the signs?" said James in tones of mock concern.
"Think I did," said Lupin seriously, as they joined the crowd thronging around the front doors eager to get out into the sunlit grounds. "One: He's sitting on my chair. Two: He's wearing my clothes. Three: His name's Remus Lupin...”
― J.K. Rowling, Harry Potter and the Order of the Phoenix

“The Death Eaters can't all be pure-blood, there aren't enough pure-blood wizards left," said Hermione stubbornly. "I expect most of them are half-bloods pretending to be pure. It's only Muggle-borns they hate, they'd be quite happy to let you and Ron join up"
"There is no way they'd let me be a Death Eater!" said Ron indignantly...."My whole family are blood traitors! That's as bad as Muggle-borns to Death Eaters!"
"And they'd love to have me," said Harry sarcastically. "We'd be best pals if they didn't keep trying to do me in.”
― J.K. Rowling, Harry Potter and the Half-Blood Prince