We have gone to Tai Chi classes for more than ten years. Within our group was an elderly lady, very graceful, tall, with hair fastened back into a bun. Walked like a Ballerina. She was a joy to watch, she has been missing for most of the term, we were told today on our last day of the class year, she is dying of Cancer, by the time our classes recommences in September she will have died.
We never conversed with her very much, there isn't time. We go to the Class, do our Tai Chi, go home, so the next Class can start. We know nothing of her personal life or circumstanes, and yet because of shared experience, and close observation, we knew everything about her.
What caused her Cancer? Passive Smoking, she never smoked, but worked in a situation where others did.
Do I have question? Why should someone beautiful be a victim to something so horrible?
Does any ones smoke have the right to kill others? They may have the right to kill themselves. but they don't have the right to take other peoples lives.
SeasideMan
Pro 
Ah, this is a difficult question. The thinking now seems to be that smokers can smoke but not around non-smokers, and if a non-smoker chooses to go into a place where people smoke it's their lookout. That sort of makes sense. But this sort of thinking is comparatively recent. In the bad old days you couldn't go anywhere without smoke.
If your friend was a victim of passive smoking she was unlucky as it's relatively rare. Roy Castle, for example, was held up for a while as a non-smoker who caught cancer from all those years hanging around smoky jazz clubs, but a post-mortem showed that his cancer didn't have the "signature" that ones caused by smoking did.
Personally, I think the smoking regulations are about right in the UK as they are now, but they are on the verge of getting too restrictive.
I don't smoke, btw.
Tom.