Should bartenders be liable for its drunk customers?

[Kevin]

If you're a bartender, and you don't know that giving someone 19 shots is going to eff them up pretty bad, then you probably are too dumb to be a bartender. Given that bartenders generally have an idea when a patron is drunk, and reasonably should know to stop serving somewhere before that 19th shot, I'd say that the bartender should be held liable. In fact, in the U.S., unless a statute protected them, I'd almost be willing to guarantee there's a liability there.

In Norway though, I have no clue.