Should bartenders be held responsible for the behavior of their patrons?

I believe that bartenders shouldn't be help responible for other peoples behaviors of how they act at the bar. Although it would help if they would cut a person off if that person appears to be way to intoxicated to be drinking more. I think if someone wants to make stupid decisions they should be held 100% accountable for their actions. They are the ones who make the decision to go out and drink so they already know some sort of what their getting themselves into before they even go out. A bartender is there to be supplying drinks, thats his job. So what should the bartender have to be held accountable for a complete stranger and their choices.