Aren't You Glad You Didn't Turn on the Lights?
From Super-wiki
From the Pad of Definitions
From 1.07 Hook Man.
A variation on the Hook Man legend. It concerns two roommates, usually girls. When one comes home late, she finds all the lights are out and assumes her roommate is already asleep. The girl gets ready for bed without turning on the lights. The next morning, when she wakes up, the girl is horrified to discover that her roommate has been viciously slaughtered – and written above her body, in her own blood, are the words Aren't you glad you didn't turn on the lights?
