Never assume...

I had to go to the dentist today. My half yearly scrape....scrape...

I went to the elevator. A guy was waiting at the elevator, so I waited and waited. The guy walked away from the elevator and walked down the hall.

I looked at the button and noticed the light was not on. I pushed the button and the elevator opened immediately.

I had assumed that the guy had pushed the elevator button. Now, I don't know what he was doing.

Never assume...