Dear Mr. Filch,
What is your opinion on Muggles? What is your opinion on witches and wizards and magical beasts? On Goblins and ghosts and magical feasts? Do you enjoy working at Hogwarts?
Creatures that clean up after themselves carry my favor, obviously. House-Elves even clean up for others! Hogwarts is my home and I enjoy work most during the summer months when Mrs. Norris and I can relax by the lake after a hard day’s trophy polishing.