[thecavemaster]

I prefer that you answer what is "right" and "constitutional".

If by your behavior, i.e. smoking and/or not wearing seat belts etc., you "spill over" costs to society that are unsustainable, I'm not sure "right" or "constitutional" apply. How 'bout this: all smokers sign a waiver that says, "I'm going to smoke, dadgummit, and when I get cancer, I agree to get no treatment that I can't pay for. I don't want non-smokers to have to pay for my habit." Don't that tickle your "personal responsibility" streak, Kimball?