Yes I have, not so long ago either. Back December 1st when I first quit after finding this site I seemed to be doing well. Got through "hell week", trudging along and then "POW" day 18 came along, last day of work before holiday shut down and I caved. I slipped big time. It was worse that wet dog poop. I actually stopped at the tobacco store on my way home from work (going out of my way) and bought tobacco and tubes, went home and smoked. So day 18 was a nightmare. I had let myself and everyone else down. I also was making my breathing worse with every drag. Depression can be an evil thing people. Don't let it get into your quit. It did not fix one darn thing or make anything better. Today is day 18 again for me. I really learned the hard way about Not One Puff Ever. I have since then been diagnosed with severe asthma and have been warned of the dangers of smoking ever again or even being around smokers. I am on medications that I will have to take for the rest of my life and getting a cold with a cough will be hell for me. So as I look back at my smoking experience of 35 yrs. I didn't see anything that made my life any better. I know that I can not take a puff ever. I am not missing it like a lost friend this time. I'm more angry that I had it in my life. So today is day 18 and I know that I will NEVER EVER take another puff. It wouldn't have been possible if I hadn't found this site and all you loving and supportive Online Angels who gave me the inner strength to fight through it. So today I celebrate you all and thank you all for helping me. No one has been as supportive in my life as you. Some day I will be a proud elder on here for sure. Have a wonderful smokefree Sunday! I know I am. ;-): Love you all bunches, Kelly