One Drink Cup per table:

Walk into any QSR that allows free refills on Coke, Pepsi or coffee and you will notice tables of two with one drink cup. People are sharing a single cup because they can get free refills. Your customers are not taking advantage of you, on the contrary, they are doing it to not be taken advantage off by you. The reason this phenomenon occurs is that couples after they have been together for a while tend to drink the same beverage. After going to QSR’s and ordering two beverages they come to the realization that they can order one drink, save the $1.69 plus tax and still drink the requisite amount of beverages with their meal. The motivation is not frugality, rather it is the notion that the restaurateur is cheating you by charging for two unlimited drinks.