yokai.com

j6VXE TIL: The Kanbari Nyūdō is a Japanese yokai(demon/ghost) that haunts bathrooms and spies on people as they are using the toilet on New Year's Eve. Encountering one brings bad luck for the new year. To counter it say "ganbari nyūdō, hototogisu!” (“ganbari priest, cuckoo!”) before using the toilet.
kONJW TIL There's a legend of a ghost called Suppon no yurei that is essentially a vengeful spirit of softshell turtles that attacks humans who eat too many of them.
loL6a TIL in Japanese folklore there's a yokai called Karakasa kozō who's a bouncing one-eyed umbrella that sneaks up on people and licks them.