"A long time ago there was this girl (Jane) who was alone with her friend. All of the doors and windows were locked. Jane's friends walked up to Jane's bedroom to see Jane sitting on the bed. Unknown to Jane there was a man under her bed who was holding a knife.
The friend caught the eye of the man, who ran a finger across his throat then put a finger to his lips miming say anything and I'll kill her.
"Jane," the friend called. "Will you come downstairs with me?"
"No," was Jane's response.
"Please, I'm really scared. Also take a big jump away from the edge of the bed."
Jane consented and once outside her room the friend told her about the man under her bed.
Jane was shocked, but they locked the man in the room, and phoned the police.
When the police came they went up to Jane's bedroom and looked for the man.
He wasn't there.
All of the windows were still locked, as was the door.
The man had simply vanished, and for all we know, the man is still alive and killing..."
A.N. It may not make sense that they locked the man into the room, but my friend's bedroom has a lock from the outside, not inside.