Just to prove what an oddball I am (like I need proof), I like the smell of second hand smoke!
I have never smoked (tried it, didn't like it), but I grew up with a father who smoked all of his life (starting when he was a teenager) until it killed him (lung cancer at 62). I think it is unfair for smokers to subject others to second hand smoke especially in enclosed areas. But most of the smokers that I know are sensitive to this. I also know smokers who are VERY good parents, so I think it is important not to generalize.