I've got a couple...
This door leads to the machine room for an elevator in a Florida hotel.
Look a little closer, and what's that hanging there?
Yes, it is indeed the key that unlocks the door.
This one was in a subway station in Italy.
You can see that he is watching not the monitors, but his game of video poker!
Shortly after I took this picture, he noticed us all laughing at him and came out and yelled at us.