There's something about the idea of munching on a nice leg o' man that makes everyone want to be a comedian. We use jokes to hide anxiety about touchy subjects, of course, but it's more than nervous laughter. People like to discuss eating people--once someone else brings up the subject. William Bueller Seabrook, a man who acquired more firsthand knowledge about the fundamental facts of cannibalism than most of the civilized people who talk about it, wrote about cannibals in 1931, 'Even aside from their delightful humorous aspect they are a highly interesting and wholly legitimate subject,...