Pizza Hut is to remove all self-service salad carts from its 440 restaurants in China. Up to now, customers were permitted just one trip to the salad cart, but these restrictions have led to ingenious Scooby snack-style stacking of CCTV Tower proportions. The chain, the first to introduce pizza to China in 1990 and pizza delivery in 2001, claims that the move is part of a general menu expansion, but it's surely down to salad cart abuse.
Years ago my university restaurant was modernized to have different kinds of food counters. After the modernization they had 2 problems with the salad bar: one problem was that some people were ordering meat at the grill counter and then piling salad on top to hide the meat, but more common was people building small salad towers, enough to feed multiple people with 1 plate. Eventually the restaurant resorted to billing the salads based on weight, which mostly solved the problem, but it also lead to a drastic drop in the consumption of tomatoes and cucumber.
Years ago my university restaurant was modernized to have different kinds of food counters. After the modernization they had 2 problems with the salad bar: one problem was that some people were ordering meat at the grill counter and then piling salad on top to hide the meat, but more common was people building small salad towers, enough to feed multiple people with 1 plate. Eventually the restaurant resorted to billing the salads based on weight, which mostly solved the problem, but it also lead to a drastic drop in the consumption of tomatoes and cucumber.