I boarded the elevator in the basement with two men. They appeared to know each other but didn't speak; once inside they elevator both started furiously typing on their blackberries.
When we reached my floor, I got off. They didn't.
I assumed we were all going to the same place, since neither of them pressed a floor.
How long you think they stood there, thumbs flying - after the door closed - before they realized one of them had to push a damn button for the elevator to move?