Almost 175 years ago, Congressman Davy Crockett encountered a Massachusetts colleague in Washington. The New Englander, pointing to a farmer driving some mules along Pennsylvania Avenue, quipped: "Hello, there, Crockett, here's a lot of your constituents on parade. Where are they going?" The Tennessee frontiersman shot back, "They are going to Massachusetts to teach school." Ever since Crockett's day, Volunteer State politicians have used humor...