I do not, nor did I, presume to know the details. I was not trying to say that the smoking is causing his problems at all. The last thing I want to do is be an anti smoking crusader on a photography Website. I only commented on something that *appeared* ironic when viewed. It was not a comment about Dave, but a comment on accidental humor, I guess you might say.
I do not know Dave, but I wish him well. I am sure we have all been affected by health issues with those we know and love. I sure have. My apologies for making myself unclear and for finding humor in the area immediately surrounding a sensitive issue.