That reminds me of what my old man done... In his house in the living room he has one of those door handles that you push down on to open the door... except he intentionally (??) put it upside down so in fact you have to pull it up to open the door. (its the only room in the house he put it upsides down on)
Its pretty funny to watch someone who doesnt know struggle to get out of the door.. it takes most people quite a while before they ask for help... I guess people dont like feeling so dumb that they carnt open a unlocked door, and it just never crosses anyones mind to try pushing it up .. never ever ever.
Whats been even funnyier is ive seen him get a door 2 door salesman.. he invites them in puts them in that room says some bogus excuse closes the door and leaves them for a bit... all the while chuckerling as he hears the person fantically trying to open the door. After a bit he will go in and say ow your still hear.. sorry about that im old i forget things why didnt you come out and remind me... 9x out of 10 the person will leg it...
He does like his black humor...