What is the secret formula for scaring someone [No cheap scares!]

[jssjr90]

What makes you think that Cranky old man? I know how to scare people in my maps. Also not respecting a story that is just going to scare people? Relay now? Dont judge a book by its cover. I think its time that you take a nap, getting a bit, shall I say "cranky"

Just to be clear, the point of this thread is to talk about how to scare people. Not helping me to know how. So ill just leave it at that.