I'm a current smoker. I've quit twice, the first time for 4 months, the second for 10 months. For that occasion, I had to quit smoking "at least two weeks" prior to surgery. For breast cancer. After surgery, I went straight into chemotherapy. 3 weeks after chemo ended, I started radiation treatment. I was off work for 10 months during treatment, and felt like crap the whole time. No desire to smoke.
Went back to work and started smoking again within two weeks. My surgeon said, "Smoking is bad for you, but you didn't get breast cancer from smoking."
Good enough for me. I know it's a filty habit, I know it's bad for me, I know it's expensive. But I LIKE smoking. I am addicted to it; the withdrawal symptoms are horrific. But I do actually enjoy the act of smoking my Ultra-light menthol wussy cigarettes.
I've been cancer free for six years now. Plus, every chest X-ray has been negative.
I won't smoke around people eating (and don't smoke whilst I am consuming food). I don't throw my butts out in the world; I'll put them in a small, pocket ashtray I carry in my purse for that purpose. I am considerate enough to move away from common pathways or people in parks or other public places, because I know the smoke bothers others. But some of the looks of distaste and over-the-top expressions of horror demonstrated by a few people really irritates me.
Ah well. You did ask if anybody else smoked.... and I'm one who does.