A customer in a bar buys two bottles of beer. You notice that he gives one of the bottles to his friend, who was cut off by the bartender earlier that evening. What should you do?Allow the customers to share drinks.Tell the customer who bought the beer that because he gave one of them to the friend who was cut off, you have to stop serving both of them. Clear away all of their liquor.Allow them to drink the beer that they just bought, but tell the customer who's been cut off that he can't have anything more to drink after that.Continue to serve liquor to both of them, but slow the rate of service. Do what you need to so that they don't start a fight with the serving staff or other customers.