Guys have long been the most popular subject of Dave Barry's columns, rivaled only by dogs (not that there's such a big difference). Here is Dave's mission for Dave Barry's complete guide to guys: a fairly short book: "What we need on the part of both genders is more under standing of guyness. And that is why I wrote this book. I intend to explore every facet of guyhood, including the historical facet, the sociological facet, and the facet of how come guys spit so much. Every statement of fact you will read in this book is either based on actual laboratory tests, or else I made it up. But you can trust me. I'm a guy."