I found out last month I have prostate cancer. When talking with the Dr. he asked about smoking. My brother and I never have but our parents were heavy smokers. When I was working in the 70's and early 80 I worked with a lot of people who smoked in the office. My wife would have me strip off my clothes in the garage when I came home from work because they smelled so bad of smoke. My brother has prostate and bladder cancer. The doctor said since we both have cancer it could be from second hand smoke.