My ma (Boomer) likes to talk about how her and her siblings used to chew on road tar like gum and than she laughs about it, har har. Whenever I mention something I'm being cautious about with my kids. She also had lung and breast cancer, could be unrelated but maybe it didn't help. I'd like to add that neither of my parents believed that second hand smoke was "real" either. So I got blasted with carcinogens from birth until I moved out at 17. I'll be lucky if I don't get cancer.