The ability to laugh, especially the ability to laugh at ourselves, is a uniquely human characteristic. One of the greatest sources of humor can be religion, for religion offers us an opportunity to laugh at ourselves at our most serious. And Jesus taught us that we shouldn't take ourselves too seriously. Unless you become like little children, he said, you cannot enter the kingdom of heaven. Author Tom Sheridan begins by discussing the importance of laughter and the relationship of humor to religion before launching into the hilarious jokes.