Well, I've never smoked and my stupidity has been amply and embarassingly demonstrated many times in these threads. I'll have to put it down to being raised in a smoking household and too many mis-spent hours in smoky jazz clubs in my "youth". In the 100 Club in London in the '70s you came out reeking of Chinese food as well as tobacco smoke!
RtS (Dim as a TocH lamp)