"Messrs. Moony, Wormtail, Padfoot, and Prongs: Purveyors of Aids to Magical Mischief-Makers left behind a legacy that every teacher remembers. They keep it a secret so future Magical Mischief-Makers can't follow in Mischief-Making footsteps. This is the story they don't want you to know, all seven years of it. Don't forget to hide the evidence, the spell's simple: Mischief Managed.