There is no obligation to keep people from getting drunk. With that said, the bartender should know when a person has had too many drinks. When this happens, they have the right and the obligation of denying any more drinks to that person.u003cbr/u003eu003cbr/u003eThis is a very touchy subject because it can be hard for a bartender to make that decision, but if a person is obviously drunk, this is easy to stop. This is someone who is going to be slurring their speech. There will also be erratic walking, and their demeanor will be quite different.