How to treat 13 guests running away because of the waiter's miscalculation?

Hello, the landlord, for the waiter, both accounts are wrong, and his business level is too poor. This kind of waiter will delay passengers' time and try to strengthen their professional ability.

For those guests, you can't run away just because the waiter miscalculated twice. In this case, your personal quality is extremely low, and their practice is illegal. You should be responsible for eating the king's meal.