Tonight I had dinner at Chez TJ in Mountain View with Ben and Susan. One strange part of the evening was at the start when I inquired about substituting for two meat courses in the tasting menu (since I don't eat meat). The waiter seemed surprised. In the Bay Area. I said: "I'm sure this has happened before". He sputtered something about that people usually let them know in advance. They actually didn't have any problem finding ingredients to do the substitutions (rather well), but for some reason the exchange was very funny at the time.