It is highly unlikely I would ever do this. I mostly understand it to be not cool in a house that I wouldn't be in. I think I play this prank on a friend that occasionally crashes out on my couch.
I am trying to write a story about a new tenant who got too involved with The Quantum Cat experiment, became a pig (that only he and I can see) and can hear a cat in the wall.
I admit this is not much to do with audio. The thread will likely be deleted.