Mange

"...and one of them had the cheek to call me a mangy old goat! I should've hauled her off to detention. The utter nerve! There's no mange on me!"

- Argus Filch.

Mange is a class of contagious skin diseases of mammals caused by parasitic mites, which includes scabies and demodicosis.

Sometime in the 1991-1992 school year, someone called Argus Filch, the caretaker at Hogwarts School of Witchcraft and Wizardry, a "mangy old goat". Filch took offense to that, particularly because of the fact he had no mange on him.

Behind the scenes

 * Argus Filch's line of dialogue about someone calling him a "mangy old goat" was intended to be used in the PC version of Harry Potter and the Philosopher's Stone. However, this is not featured in the final game, and thus this dialogue goes unused, though it still appears in the game's files.

Appearances

 * Harry Potter and the Philosopher's Stone (video game)