Sherlock's drug habit on Edgar Bergen radio show

It is a well-known trivia fact that Sherlock Holmes' vice was the use of cocaine for a portion of his career. At the end of The Hound of the Baskervilles movie, you can hear Holmes say, "Quick, Watson, the needle," referring to that habit. In one episode of the Edgar Bergen radio show, Charlie and Don Ameche talk orchestra leader Ray Noble into getting a tattoo, and as they begin, Ameche quotes that line.

Charlie also claims to have given Bergen a tattoo on the top of his bald head.