Has this ever happened to you?
You have just evacuated your bladder and/or bowels in a bathroom at work, and, after flushing (you’re not an animal, after all), you make way for the door, just as another person walks in and sees you exiting the stall.
Spotted, you halt in mid-step, pivot, and walk back to the sink for a quick soap, rinse and dry, after which you sheepishly head out the door.
Never happened to you? Hey, me neither.