In one of his sermons, the great preacher Fred Craddock told a story about something that happened many years ago while he was driving by himself cross-country. He had stopped at a small diner somewhere in the South to refresh himself with an early breakfast and some coffee. He had been driving through the night and now it was getting close to dawn. So before he got too sleepy, he stopped for a while.

As he waited for his breakfast order to come, Craddock spied a black man who had just come in and had sat down on a stool up by the lunch counter. The diner's manager then began to treat the black man with…