A cryptic story for you!
He lives in a high-rise apartment building.
Because he lives on the 14th floor he needs to use the elevator.
One time in the middle of the night he came back from work.
He got on the elevator and pushed the button for the 14th floor. Then just as the door closed and the elevator started moving, the button for the 8th floor lit up.
"Hmmm, wonder if someone else is waiting to get in?"
Immediately after he thought that, he realised something and quickly pressed the buttons for the 2nd, 3rd, 4th and 5th floors successively.
The elevator went past the 2nd floor, but luckily it stopped on the 3rd floor and then he impatiently forced his way out through the leisurely-opening doors and ran to the outside.
He ran down the stairs and left the building, and then spent the whole night reading magazines in the near-by convenience store until the day broke.
"Perhaps it was nothing, but you never know."
He smiled as he said it, but even today he still avoids using the elevator in the middle of the night.