Tudor.....
[No this is not my first post...just had to reset my membership following a virus].
I know this is a cop out....but I don't mention it for that reason.
If you are drinking and silly enough to drive or try to fly, then never ever supply a test sample if caught. [Assumming you realise that your well over the limit]
Yes you will be charged with failing to "Provide a Sample". But that charge on your future resume is far less damaging than drunken driving or flying!!
You can mitigate that charge by many statements, but its hard to mitigate that your a drunken driver or pilot.