Bad science or not, smoking stinks (in more ways than one) and is a serious threat to the health of the smoker and those he/she inflicts the waste-products on. Deny that, patty, and you're a fool.

And I'd rather be 'whipsawed around' (W-everTF that means) than poisoned by selfish people. And for every considerate smoker, there are many more selfish ones, IME and IMHO.