That awkward moment — when dealing with a stranger — that you realize the person you’re communicating with is not all right in the head…
And you suddenly find yourself struggling against the gravitational pull of a conversation in order to extricate yourself from the increasing craziness without drawing too much attention to your sudden change in demeanor.
*Um, yeah. I suddenly remembered I have to… uh… go, uh, put air in my tires. yeah. Bye.