»The lowest order of insect is the litterbug.

While I was cycling down Polk past City Hall, a black Jetta was in the lane next to me. The passenger wound down the window and chucked a crumped up -- cigarette pack? parking ticket? something associated with being moral turpitude, surely -- which bounced against me. I told the man, who was inches -- inches! -- away from me, that he was inconsiderate, and he replied, "I didn't see you there." I suggested that he was inconsiderate not just of me, but of the streets, and he looked blank. I put it plainly: "You shouldn't litter, and you shouldn't throw things at people." He became angry. Traffic in the bicycle lane was moving faster than autos, and I pulled ahead.