After smoking 2 packs a day for 45 years, I put them down 3 years ago and haven't smoked since. I worked for the same company for 30 years, retiring in 2006. Smoking on the job was totally fine for the first 25 years, then suddenly the company said no more smoking in the factory. The air inside the plant was like a fog due to the coolant mist and was so thick you could not wash the smell out of your clothes, but the company would not admit this might be an issue. Since my retirement, I average 4 to 5 funerals honoring one of my former co-workers, 98% died from some sort of cancer. While I agree that smoking is a very unhealthy habit, but in my situation, I think tobacco smoke is the least of the companies issue.