If someone wants to smoke on their own property, it's their own business.
If they want to allow others to smoke on their property, it's their own business.
Like carpenters who risk their thumbs, like high rise construction workers who risk their life, like schoolteachers who risk their sanity, if you're willing to expose yourself to 2nd-hand smoke, it's your own business.

Fort Worth Weekly's Blog (Blotch) has an article on our effort to fight The Health Nazis (yeah, I just violated Godwin's Law).
Here's a brief excerpt:
I’ve never really understood how a city can legally force private property owners to ban smoking in their own establishments, whether a bar, restaurant, or whatever. It seems like a smart thing to do health-wise, but doesn’t seem legally possible. Still, cities across Texas and the country are cracking down on public smoking.The Libertarian Party is fighting back, calling it a private property rights issue. Here’s their announcement about an upcoming legislative push....
The comments have already gotten interesting, and it would be nice to see a few dozen more added to the dogpile.
"First they came first for the Gays and Lesbians, And I didn’t speak up because I wasn’t Gay or Lesbian;
And then they came for the Pot Smokers, And I didn’t speak up because I didn't smoke marijuana;
And then they came for the Gun Owners, And I didn’t speak up because I didn't own a gun;
And then they came for the Cigarette Smokers, And I didn't speak up because I didn't smoke cigarettes;
And then . . . they came for me . . . And by that time there was no one left to speak up.
But they kept the tobacco subsidies in place, because lots of millionaire tobacco farmers liked the money, and they were big time campaign contributors."
With sincerest apologies to Pastor Martin Niemoller