Driving when your blood sugar gets low is pretty dangeous too, to add to that list Dtg gave.

And the point of that, I take it, isn't that it means that drunk driving is relatively OK, but that driving is a dangerous activity, and assuming that you're safe just because you haven't been drinking is just stupid and irresponsible.

I think there are a whole lot of people who psychologically are just not fit to drive, and driving tests should weed them out. Typically they think they are great drivers, and technically they may well be. Good enough, often enough, to escape from the accidernts they cause.

One of the most effective anti-drinking-when-driving advert I remember was on our TV in England. A couple driving home from a party or wherever, and the driver is driving safe as can be. Then some maniac in a car cuts across them and there's a crash, and this arrogant little sod leaps out angry and sneering, and clearly totally sober - and he leans in, and sniffs the breath of the driver whose car he ran into. "You've been drinking, haven't you?" he says, and laughs and the police car drives up...

The point being, even if you are careful as careful and genuinely safe, and above the limit, if anything happens, you are going to be the one in deep trouble.

(But isn't it a pity that in the USA you haven't got a rule that anybody whose been caught driving over the limit is be barred from being elected President?)