Here in Manitoba, Canada, we've got some of the toughest drinking and driving laws. The national limit is .008, but if you get caught with .005 on the breath test, you will be charged, because Manitoba passed legislation that allows police to charge people who blow at .005 and over. Drinks here used to be cheap like borscht. $0.25 for a glass of draft, $0.75 for a half pitcher, and $1.25 for a pitcher. Around 4 years ago, a university student was out drinking. He got rather intoxicated. The bar was just off one of the University campus', which happened to be not far from one of the few rivers that runs through the city. The guy, quite drunk, staggered home from the bar. Unfortunately, because of his state of inebriation, he slipped when he was walking along the river bank on the way home, and drowned. He was missing for two weeks. When they finally found him, and conducted the investigation, the city and province took another look at the drink prices. After about 6mths of discussions, they instituted a minimum drink price of $2.25. If I remember right, the fellow's parents were going to sue the bar for allowing him to walk out without verifying that he was in reasonable shape to 1)get home on his own, 2)have friends who could make sure he'd get home, and 3)for not calling a cab if none of the above were available. He was 21yrs old, in his third and final year of psychology(I think).

So, yeah. I say if they can prove that the bar staff didn't at least made an -reasonable- attempt to have the person arrive home safely, then yeah, go ahead and charge/sue/fine/shut down the place.