When's the last time you picked up a business book that was so engaging you couldn't put it down? Steve Difillippo was only 24 when he opened his first Davio's restaurant. Since then, he's wowed Julia Child with his pomodoro, overlooked some triple-X rated shenanigans at Table 7, taken on American Express, gotten himself into Time and Newsweek (for taking on American Express), cooked a rabbit for Stevie Ray Vaughn, inadvertently gotten a guest divorced, whipped up some tasty eats at the Super Bowl--and that's just the beginning. The money hasn't been bad, either: that first restaurant is now...