Years ago, there was an excellent Cop drama, Homicide. I'll never forget one episode in particular. There'd been a murder, and one of the detectives was canvassing a black neighborhood looking for witnesses. Door after door was slammed in his face. As he stalked away, he fumed, "Black folks!" Next scene, same thing, only it was a white neighborhood. Again he stalked away fuming, "White folks!"

He was a black detective. I've never forgotten it, I guess, because it was so true!