grounded27:
A simple over the counter Breathalyzer would surprise many to their BAC in the morning. Not a pilot but as regulated as an AMT I learned my limit this way. The 12hrs bottle to throttle guideline does not work. Size, weight body function.. To many variables.
The average pilot would really had to have tied one on to have much of a BAC 8 hours after the last intake, much less 12. What is bad is the hangover and its negative effects on performance.