There is a true story about a TV announcer who had been doing coffee commercials for several years; then he changed sponsors. This time he was doing a commercial for a cigarette company.
On camera for his first new commercial, he took a long draw on his sponsor's cigarette, blew a big smoke ring, looked into the camera and said, "Man, that's good coffee!"
Old habits die hard. (Dynamic Preaching, Vol. X, Nov. 1995)