Told this one before on here, but here you go:
I live in a house that was built in 1816. Our bedroom is on the top floor, with a solid stone staircase leading up to it from the door on the first floor directly into the room.
One night, I woke up to my husband quietly closing the door and sneaking back up the stairs (trying to avoid waking me). Since I was awake now, I turned to tell him to just come up.
... only to realize he was right there beside me in bed.