in fact, i am a health nut and enviro-fascist.
i have an extremely healthy diet.
i don't smoke.
i get a lot of exercise.
i recycle in buildings that don't.
i compost.
i don't own a car; i walk, i bike.
i
 had a struggle with cigarettes that i've won. but, my entire life is 
centered around minimizing my carbon output and living as healthily and 
as safely as possible. and, living in other people's smoke is 
consequently an impossibility - a contradiction, an unacceptable 
premise.