Smoking is so rare these days that when you pass someone smoking it feels like an attack on your capacity to breathe, even in public spaces.
And I'm not a big fan of the noise and dirt from automobiles and I wouldn't sit anywhere near one if it could be helped.
Before its even a question of health its one of the way smoke invades your body without it being in the least desired.
'Forget it Jake. It's Chinatown'