Alcohawk Micro Keychain Breath Alcohol Screener

We can see how cops and bouncers could use a breath alcohol screener this tiny to carry around, but if you're at the point where you want something like the Alcohawk on your keychain for self-testing, perhaps you'd be better off having someone drive to you rehab instead?

Alcohawk Micro [Q3 Alcohol Testing Specialists, via Techie Diva]