Oh come on, everybody. It was just a question. No need to get all preachy, anyone with any brain cells left knows better than to drink and drive. The question is still interesting, and although I personally don't commit this particular heinous act, I would be interested in a (real) answer.

As an aside, the best way I've heard of is from a bunch of jokers who were drinking at a pub KNOWN to be watched by the cops. Just before closing, one guy tottered out, meandered to his car, wandered out of the parking lot, went oh-so-slowly down the street, and got pulled over about 2 blocks away. He passed the breathalizer. He passed the walk the line. He passed the touch your nose. He was totally sober - he was just the designated decoy! But of course that only works if you know the cops are there...