More weird tales from my past employment.
Many years ago I worked in San Francisco. There was this guy I used to see near the Embarcadero who would sit on a bench every day holding his head and screaming. All day....SCREAMING. At first it was a little scary but eventually you got used to it, he was just one of the city's characters.
One day Dave and I were taking the ferry home instead of the bus and we saw the screaming guy reading a paper and drinking a coffee like any other commuter. I guess ya do what ya gotta in order to not go on a shooting rampage.