Driving a cab has been rated the most dangerous job in the United States, surpassing the risk of being a police officer. At the same time, it is most entertaining. Especially in San Francisco, cab passengers are from diverse and contrasting walks of life: the rich and the poor, the sorry and the psychotic—drug dealers, gang members, French tourists, hookers, derelicts, transvestites, muggers, and even other cab drivers. People sit in the back seat and share predicaments, a snippet of their lives. Sometimes a snippet is too much.