A much better Idea is a USB breathalyser to stop drunk ebay-ing, and forum usage.
I was in Slovakia earlier this year and some of the pubs had breathalysers at the end of the bar!
That is definitely the wrong approach IMO. But a breathalyser for a reassuring "[i]yes I am definitely fine[/i]" test in the morning would make some sense.
I would use one for the morning after, could have been over the limit driving home or to work many times.
The military used to have an 8hr "bottle to throttle" rule but I think it's now 12hrs. Commercial pilots it's 12 hrs before the start of duty (not the start of a flight).
I'd apply the same rule for driving and certainly if I knew I'd be driving at 9am the following morning I'd only have a couple at most the night before.
