The dangers of second-hand smoke are documented but not yet as widely publicized as they should be. Smokers generally have a filter. Their unfortunate victims don't.

Toronto is also smoke free now. It's excellent going into a club or bar and not having the smoke interfere with the enjoyment of the mass quantities of alcohol.

I like the farting analogy. It can smell just as bad, but less likely to leave a deposit on your lungs.

Bruno