A/N: 3rd book. Canon event- when Fred and George gave Harry the Marauder's Map, I'm not sure if I specified that, which is why I'm doing it now!
Mishchief Managed
"We'd better hurry up and decide," Fred whined. "I want to get to Hogsmeade and buy more Stink Pellets! I'm completely out!"
"It's Hermione I'm worried about," said George, ignoring his brother. He scratched his chin thoughtfully. "If he tells her, we may as well give Filch the map ourselves! And we can't let something this good go to waste."
"But the poor bloke can't even go to Hogsmeade," Fred sympathized. "Oh- shhh, here he comes."
They watched from behind the hump-backed, one-eyed witch as Harry Potter sulkily walked unaccompanied along the third-floor corridor.
"Should we give it to him?"They looked at each other and arrived at the same inevitable conclusion. "Nah."