Just How Drunk is Steve-O?

When you have to test out a product that checks the blood alcohol content of someone, just who do you look too? At TMZ we look to our friend Steve-O.

The compact design of the "AlcoHawk Digital Alcohol Detector" makes it perfect for the party boy (or girl) on the go. Small enough to add to your key chain or toss in your pocket, it allows its owner to blow into a folding mouthpiece before getting behind the wheel.

So what did the shirtless wonder Steve-O think of this product? Our brave tester informed us that he "went to war with a bottle of vodka" before giving the AlcoHawk a try. And just what were the results of the Breathalyzer field test? Check out the video and see for yourself.