Unmanned all-you-can-eat coffee shops appear in America

The Vault Cafe in Valley City, North Dakota, offers full self-service, where there are no waiters, and customers need to make their own coffee, then swipe their credit cards or put cash into the deposit slot to pay for it, according to the odditycentral website. The income of the coffee shop depends entirely on the honesty of its customers.

Owner David Brekke and his wife Kimberly, who opened the coffee shop in October 2013, have complete confidence in customer honesty and rely on the "honor system"-the belief that people will not run away for their own honor to provide full self-service. Although they have not yet reached the balance of payments, it is not because someone has stolen money or cheated. In fact, 15% of customers are more generous.

It is reported that the atmosphere of the full buffet coffee shop is very good, in addition to the necessary drinks and snacks, Blake also placed many selected books, two pianos and works of art for sale. In addition, Blake has turned a wall into a movie screen, which plays at 07:30 every Saturday night, all for as little as $3.

This full self-service attracts many repeat customers. Customer Leroy Tribod (LeRoy Triebold) said: "this is a very good place, it is very quiet, more and more people like to come here."

"it's so convenient here," said Madeline Luke, a customer. "most customers are very honest." River Valley has a population of just over 6000, and almost everyone knows each other, so it is impossible for anyone to steal in front of others. The honor system makes customers feel good and gives them a chance to affirm themselves. "can we open an honor system coffee shop somewhere else?" Blake said. Only the good people in River Valley City made the full self-service shop a reality. "