You hit the up button for an elevator. You wait. Elevator dings. You stand by the door, and then accidentally get in the way of people exiting the elevator. Oops!
Yeah, most of the time you don’t let this occur. You always try to stand clear of the doors before they open. But it does slip by and happen where you get in the way.
It sure would be handy if elevators had some sort of indicator if people were inside. Cuz then you have a reminder to stand clear of the doors when they open.