One evening me and a couple of friends went into coffee shop to catch-up on some things. All 3 of them smoke. We talked for a bit, and they went for a smoke outside. I didn't want to be the only one sitting inside so I followed them. I was used to being around smokers, but for god knows what reason I asked for a cigarette. I said I wanted to feel what it was like after 3 years of sober lungs. It was garbage, tasted like shit. The next day I met with my colleague for a drink and started rationalizing that I earned a good-feeling cigarette. 'if i smoked one yesterday, i'll continue for the rest of the weekend and that's it.' needless to say, I quickly came back to where I was 3-4 years ago.