Fred and George
"Mum! Fred and George took my book!
"Boys give Percy back his book!"
"No way! Pewfect Pwatty Pewcy is gettin' 'is book back!
"Their first words!
"You two do realize that you just said 'Perfect Pratty Percy is getting his book back' you agreed with Mum."
"You can't go back on your word or you'll never get into Gryffindor."
"Noooooooooooo! Here's your book back Percy!"