Clearly if you're goling to drive then don't drink. We all know this. What I find a bit saddening is when someone get's clobbered morning after just 0.5micro grams over the limit. An impairment test should be used in this situation I feel. After all, I know many people who do not drink at all and their driving is shocking. Seems unfair that a good driver with a high resistance to intoxication should lose their license on what is, after all, just a technicality.