The ghost next door

Little Springtime is studying in Hokkaido this year. Her best buddies among the other international students are from China, Thailand, Kazakhstan, and Russia. With her Thai friends, she's seen some Thai movies, and in our New Year's conversation, I learned this . . .

LS: Ever since I found out about the Thai belief that if you look between your legs, you can see ghosts, I've been afraid I might do it accidentally and see the ghost in the next room.

[LS is living in a dorm]

Me: What ghost?

LS: Oh,...