One of the biggest fears Joseph E. LeDoux had when he was growing up was of getting stuck in Eunice, La. His small hometown sits among creeks and rice fields, and its Cajun country roots give it a certain charm. It is hard to swing a possum without hitting a good gumbo restaurant. An old theater downtown hosts the weekly Rendezvous des Cajun radio show, a yipping version of Prairie Home Companion, only with dancing, and anyone can join the live studio audience for a mere $5.