As a child of the seventies, I grew up, as many [the majority] of us did, in a smoking household. Thankfully, Mum & Dad are still going strong - Mum quit 25 years ago and Dad 12 years ago.
I was totally shocked recently when my Dad said 'of course, if I was told I was dying in any case, I would start smoking again tomorrow' - having gone through the pain of quitting, and lived very happily without the dreaded weed for 12 years, some little part of him still wants to go back. A heated discussion ensued - I found it hard to believe he felt like this.
SO - the doomsday scenario... if The Hitchhiker's Guide were to come true, and you suddenly discover the earth is to be demolished to make way for an intergalactic highway (i.e. you're going to die come what may) what would YOU do? I know I absolutely would NOT smoke again - are you with me, or my Dad (the silly old fool:))??