Here's an enraging video in which NYPD cops pull over and cite a bicyclist for, according to the NYC the Blog, briefly riding on the sidewalk. Shortly after the stop, a passerby engages in some friendly jibes with the bicyclist. One of the cops apparently thought the passerby was talking to him (not that this would have excused the thuggery that follows). An ugly confrontation ensues, eventually leading to a full-blown "situation", involving by my count six cops, two cruisers and a police van. All because of a joke.
According to the person who posted the video to YouTube, the passerby was arrested and charged with "harassment, disorderly conduct and resisting arrest", a trio of charges more commonly known as contempt of cop.