If you want to learn how to make sushi rolls in your own house, the first piece of advice I have for you is this: Don't ever watch Jiro Dreams of Sushi. Actually, scratch that: Watch it, because it's one of the greatest documentaries I've ever seen, but then try to push Jiro -- the sushi chef whose Michelin-starred restaurant in a Tokyo metro station is considered the finest in the world -- out of your head immediately. Because after I watched