Interesting story about smoking.... I had a friend in the military who was a adamant non-smoker, his two roomies where smokers. Everyday he'd tell them to quit, that it was a nasty habit, they would respond that "we can't, it's just not that easy", his response "sure you can, it's all in your head". So his roomies bet him 100 bucks each that he couldn't smoke for a month then quit. So to prove a point he smoked for a month.... and is now a chain smoker 10 years later.