I totally know how you feel!
both my parents smoke, my dad doesn't do it as bad, but my mom pisses me off so much! luckily they both smoke outside never indoors, but like..say we're at six flags or disney world where they have designated smoking areas....she is like..-rides a ride. smokes a cig- over and over and doesn't care where...I always tell her she's gonna get kicked out of places but god damnit if she wants a smoke she is so not caring about any other people around her! Oddly enough, she had her lungs checked and they are 100% clear.. -raises eyebrow- even I don't know how.