Sorry Cat,
I did smoke a day in my life - in college... not enough to constitute a "significant smoking history" (ie. nonsmoking room mate nonsmoking classrooms, nonsmoking dormhalls...) but I can't claim that I never smoked "a day in my life".
Although my BAC is not related to my smoking history, I am still uncomfortable with the assumption that tobacco related cancers are somehow less entitled to research money and cure. Therefore, you should probably use Heather and Becky for that story line.