...just mention it to your life insurance provider, assuming that you are a pilot.
Do you really expect your life insurance company to pay out if they find out you're over the limit?
Realistically, the law is what counts above all else. If you get caught out, you will lose your licence for good. I fly for a living so I have far more to lose than many of you guys, but I feel a professional approach is the undoubtedly the way forward. I get the impression, fortunately, that I'm largely preaching to the converted.
I would suggest though, that the chap who had a wine at lunchtime before flying back at 5pm changes his attitude radically before
a) he causes an accident
b) he kills himself
c) more importantly, kills someone else.
Yes, it is that serious. (This is also the World's Favourite Attitude!)