Caleb is taking me on something of a food tour of San Francisco. So far today, I’ve already eaten two breakfasts. The first place we went was Dynamo Donuts. Unable to choose, I ordered 4 different kinds-maple and bacon, chocolate rose, lemon pistachio and caramel-and then watched anxiously as the woman behind the counter put them in the box. “Don’t worry, little lady,” she said as I clenched and unclenched my fists like a crack addict. “The caramel goes in last.” I grabbed the box before she had a chance to close it, and ran out on the sidewalk, where I crammed the maple and bacon one in my mouth. This trip is going to make me so fat.