I will not sit on my best friend's lap during Transfiguration class, even if my chair has been turned into a cathedral monstrosity and his lap is surprisingly comfortable.
I will not put plaques up where the most memorable pranks of recent history have occurred.
I will not convince unsuspecting purebloods that lampshades are actually very fashionable hats.
I will not give Luna Lovegood a lampshade to wear as a hat.
I will not give Luna Lovegood Ideas, nor will I provide her with a ready supply of Muggle science fiction and fantasy novels.
I will not paint Draco Malfoy's nails pink.
I will not paint Draco Malfoy's nails at all, even if he asked me to do so.
I will not animate scores of stuffed animals and tell students that there is going to be a 'Cuddly Rebellion'.
I will not enchant quills to write what users are thinking instead of what they're supposed to be writing.
I will not install lighthouse lights in any of the Hogwarts towers.
