Interesting brianh. I only know two other people with breathalysers and they are both inappropriate drinkers who use it to get home without breaking the law. They are unable to say "No".
But more irrelevant stuff, I assume your authoritative Human Factors source is an ATPL text book, I wonder what its impact factor is? I see you even got speed cameras in, so I guess it's off to Jet Blast we go
