Why is it none of anyone's business if you can't stick to simple rules? Go smoke where it's permitted instead of stinking the place out, it's not really that hard.
If you want to kill yourself slowly then do it where it's permitted not where it impacts on other peoples enjoyment/health. Yes the second hand smoke may not kill any one but people have respiratory conditions that can be exacerbated by things such as cigarette smoke & people can have allergies to the smoke - you're attitude is selfish & uneducated. But judging by your responses to anyone who disagrees with you I suppose that's not entirely surprising.