This is what amazes me about San Francisco: The fact that when I meet people for the first time, more often than not they know more about food or drink than I do. On the food obsession radar, it turns out, I score shockingly low. One of my neighbors regularly helps his friend to throw 12 person, nine-course meals. Another of my friends hunts for morels and has made his own cheese. Another one hauled a sate grill back from Thailand in his suitcase.