You're right about a few ex-smokers being like this. However, I think most will admit that the urges they feel are not cravings, and are really mild fleeting thoughts that are easy to dismiss. Certainly, their urges are much much much milder than the cravings/thoughts experienced when you first quit.
(I suspect the vast majority of ex-smokers don't want a fag or have any urge to smoke. As a result we tend not to notice them - which makes the few who do still want a fag seem to be typical ex-smokers, when in fact they aren't typical at all!)
Don't worry new quitters, most people who have quit long term rarely feel the urge to smoke, and when they do, it is easy for them to dismiss the thought. It gets much much much easier as you go on!
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