Well said. As a surgical technologist, I've seen cut people open and I see the direct effects of their tobacco abuse with grayish poorly oxygenated tissue, and "frequent flyers" who come in again and again and again to get more fingers , toes and feet amputated from poor peripheral circulation. Smokers also have poor healing capabilities for their wounds, yet refuse to quit.
I don't even need to discuss the lungs and heart. 

That's why I get infuriated when I breathe in someone's second-hand smoke when I'm outside exercising on a designated running / biking path in Eugene. It's beyond wrong, and so is this proposed 3 month "white glove " treatment of smoking offenders in parks.

Just 3 days ago I stopped into a woman's restroom at Skinner Butte park,  a 20-something male stood smoking away right in front of the ladies' room entrance. He got some choice words from me.

It's one thing to not care about your own health, it's another to impose your carcinogens on mine
when I'm exercising.