What is a smoker's personality?

I am a former smoker and I discourage smoking probably as much as you. However, I believe that you're being presumptuous and a bit snobby. It is "just stupid" to pass judgment and assume you can gauge someone's personality based on one of their health vices. What's next? Meat eaters? Someone overweight? What do those vices say about their personalities?

I would rather fly with a smoker than a presumptuous snob any day. As for hiring, again, I'd opt for hiring the smoker.