In Australia we have these things colloquially called "Breathos", ie, breath analyser (analyzer for those preferring American spelling) tests. No, relax, I didn't just get busted and lose my licence/license...I don't drink and drive or, for that matter, actually hold a licence/lisense. Shhhh ;).
Rather these things cost mega bucks for the cops taxpayers to buy. So, in attempt to be rich, rich I tells ya, rich beyond my wildest dreams, I have just come up with a very cheap alternative.
Result 1: Singing passionately to "Oh Sherrie" by Steve Perry = Do not drive for the rest of the night!
Result 2: Singing passionately to "I should've known better" by Jim Diamond = Do not drive for the next 24 hours.
Result 3: Singing passionately to "Straight to Hell" by Drivin' and Cryin' = Do not drive for a week.
Result 4: Singing passionately to ANYTHING by Celine Dion = Do not drive EVER, as you are clinically insane!