Things we don't say out loud.
NON SMOKERS SHOULD STOP ASKING A SMOKER TO QUIT.
Buddy, we've tried. We're not proud of it, at all. We got it into a habit that we know isn't good for us, but it's more than a habit, quitting causes hormonal imbalance. If the person isn't bothering you, or asking you to smoke, then you should mind your own damn business.