#this-monkey-has-tiny-feet

[mugglebornheadcanon]

914. The kitchen elves stock up on salt before the start of each term so they don't run low in case any incoming Supernatural fans try to get rid of ghosts. The demand eventually decreases as new students realize that the ghosts mind their own business , but there's always the one muggleborn who can't stand History of Magic and leaves salt lines blocking Professor Binns' entry to the classroom.