Hi Bill, wish you good health,cancer sure is insidious. I just came back from the boat show where a guy acknowledged that he never used protective gear until lately,he's in his 40's. There's a guy in our shop who rarely wears a dust respirator with all the sanding and milling going on, and he smokes A LOT. As regular animals us humans don't quite listen to each other until the axe falls. Take care.