Most of these stories back the saying you cant fix stupid. I was out in some small town on a 3 stop hydro. Didn't have a barricade so I grabbed a chair taped a out of order sign and placed it inside the car. Walked out to my truck grabbed a couple things and met the building owner who gave me access to the machine room. Put the car on door disconnect and hit the main line to swap a relay. I get a call on my cell of a entrapment. Took me a second to put two and two together it was on the car I was working on. I ran up to the second floor popped the door open and there was a lady inside the cab. I had the lights turned off and that chair inside the car. She told me that she thought the sign on the chair meant the lights in the elevator were out of order or the chair was out of order. I got a good laugh out of that one.