A bartender is an industry professional trained to mix and serve alcoholic beverages at a licensed bar, inn, or restaurant. In addition to mixing drinks and serving nachos, bartenders are often called upon to serve as listening posts to inebriated customers who wish to speak upon their woes. In this capacity, bartenders must also work as pseudo-psychiatrists, always willing to offer a sympathetic ear to someone in need. If a bouncer is unavailable, a bartender may be required to enforce order in his establishment by excising unwanted visitors from the bar - even droids!