I smoked from age 17 - 23. About a pack a day. At 23 I got a rough case of bronchitis. I couldn't smoke for about 3 weeks. I finally was well enough to have a smoke. I never tasted anything that bad in my life. I never smoked another cigarette. I did take up a cigar once in a while for the next 20 years but I gave that up as well. That bronchitis was a gift for sure.
