Wrong way out

Today I had an appointment at an office where I had been once before about a year ago.
After the meeting, I walked out the door into the hall, saw the exit sign and proceeded toward it to the parking lot.

Imagine my surprise when I opened the door and saw no cars, no parking lot and and an empty street. Afraid the door had locked behind me, I tried the knob. It did not turn, but the door opened as I pulled on it.

Back inside, I saw straight ahead another exit sign. Imagine that! Two exits. This one led to the parking lot.

Moral: When entering a doorway from a hall, make a note of whether you turn right or left and do the opposite when you leave.