This is kind of random, but wanted to see if anyone else has had the same experience. Ever since the restaurants I've gone to have gone non-smoking (Boston and L.A.), I've found food abroad (even strong things like Argentinian wine and Sichuan food in China) to have sort of a flat, car exhaust and tobacco taste that I don't get at home. I've found it at most places with bad air quality, or indoors most places with smoking. And I'm pretty sure I didn't begin to notice until after Boston went non smoking a few years back. Anyone have a similar experience?