Last time we had a thread like this mommy and daddy had to step in as it got quite heated and I think the thread was closed.
Here is where I stand:
ZERO TOLERANCE

Makes me think of those anti-drug commercials from 10 or 15 yrs ago. Showed a ballerina, she said "I want to be a drug addict when I grow up". No one says that, and no one says "I am going to go out, get plastered, and kill a family tonight!"
Drinking and driving is just plain stupid, heaven forbid if my family was in an accident with someone that was intoxicated, I would end up in jail, the drunk driver would not(deceased folks don't go to jail around here)

My job (Navy) comes with a centuries old stereotype and culture that we try to fight everyday, the drunken sailor. Every year, on both coasts, some Navy guy kills someone and/or himself due to drinking and driving. There is no excuse, no matter how stressful your job is. Buy the 6 pack(or box of wine as I prefer) and take it home, it will save you a bundle of cash as well. Can't get a DUI in my house, might fall and hurt myself, but I have high quality medical care...

There shouldn't even be a discussion as to how to avoid getting a DUI, its simple, don't drink and then go drive. In Japan the limit is .02. We have a simulator here on base, like a fancy video game similar to what pilots use for training. First round you drive around before drinking. The second round it sends you through the same course, but figures in a delay associated with a .08ish intoxication. most folks make it through just fine, but when they ghost your first run over the second run, you can see how much of a difference it makes, delayed stopping, (they have someone run out in the street on the screen), lane drift is more, and so on. Then they send you through at .15, most do not make it through that without an accident. Maybe its all BS, but as noted earlier, the first thing to go is your judgment. If you feel fine at .15, maybe you have a drinking problem? I know right now I can drink a bottle of merlot and feel fine. If I do that when I get back from a 7 month deployment, I would be plastered. That is just tolerance, my physical impairment is no different. your body processed alcohol the same way no matter what, the rest is a psychological adjustment to the feelings induced by the alcohol, very scary indeed. Think of it like cocaine, 1 line gets you going, you are high, as you build up a tolerance, you need more, but regardless, you are still physically high off the same line, just not the same emotional/psychological feeling and thus you need more. (not saying anyone does coke, I just used it as an analogy)
Bottom line, no tolerance for drinking and driving.