Have you ever been walking down the street and realized that you're
going in the complete opposite direction of where you are supposed to
be going? But instead of just turning a 180 and walking back in the
direction from which you came, you have to first do something like
check your watch or phone or make a grand arm gesture and mutter to
yourself to ensure that no one in the surrounding area thinks you're
crazy by randomly switching directions on the sidewalk.