Second hand odor kills. <sarc
That was partly my point. Non-smokers typically don't want to be smelling smoke but use the health hazards of second hand smoke to enact restrictions. An honest approach is to simply say the smell of smoke is offensive to many and is literally nauseating to some. That way, they are not hiding behind the second hand smoke issue. A friend in high school would actually start throwing up in the presence of cigarrette smoke. It literally made her vomit. Not a pleasant way for a teenager to live.