A week after Fred and George's departure, Harry witnessed Professor McGonagall walking right past Peeves, who was determinedly loosening a crystal chandelier, and could have sworn he heard her tell the poltergeist out of the corner of her mouth, "It unscrews the other way.

Time to sit down," Fred told Harry, "Or we're going to get run over by the bride.

Ask us no questions and we’ll tell you no lies.

Can't stay long, Mother," he said. "I'm up front, the prefects have got two compartments to themselves-"
"Oh, are you a prefect, Percy?" said one of the twins, with an air of great surprise. "You should have said something, we had no idea."
"Hang on, I think I remember him saying something about it," said the other twin. "Once-"
"Or twice-"
"A minute-"
"All summer-"
"Oh, shut up," said Percy the Prefect.

Now, you two – this year, you behave yourselves. If I get one more owl telling me you've – you've blown up a toilet or –"
"Blown up a toilet? We've never blown up a toilet."
"Great idea though, thanks, Mum.

Oh, shut up Weatherby.