Jane

“I believe your friends Misters Fred and George Weasley were responsible for trying to send you a toilet seat. No doubt they thought it would amuse you.”
― J.K. Rowling, Harry Potter and the Sorcerer's Stone

“We won't be seeing you,' Fred told Professor Umbridge, swinging his leg over his broomstick.

'Yeah, don't bother to keep in touch,' said George, mounting his own.

Fred looked around at the assembled students, and at the silent, watchful crowd. 'If anyone fancies buying a Portable Swamp, as demonstrated upstairs, come to number ninety-three, Diagon Alley — Weasleys' Wizard Wheezes,' he said in a loud voice, 'Our new premises!'

'Special discounts to Hogwarts students who swear they're going to use our products to get rid of this old bat,' added George, pointing at Professor Umbridge.

'STOP THEM!' shrieked Umbridge, but it was too late. As the Inquisitorial Squad closed in, Fred and George kicked off from the floor, shooting fifteen feet into the air, the iron peg swinging dangerously below. Fred looked across the hall at the poltergeist bobbing on his level above the crowd.

'Give her hell from us, Peeves.'

And Peeves, who Harry had never seen take an order from a student before, swept his belled hat from his head and sprang to a salute as Fred and George wheeled about to tumultuous applause from the students below and sped out of the open front doors into the glorious sunset.”
― J.K. Rowling, Harry Potter and the Order of the Phoenix

“What have I got in my pocket?" he said aloud. He was talking to himself, but Gollum thought it was a riddle, and he was frightfully upset.
"Not fair! not fair!" he hissed. "It isn't fair, my precious, is it, to ask us what it's got in it's nassty little pocketsess?”
― J.R.R. Tolkien, The Hobbit, or There and Back Again

“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