Diners can completely ask for this, depending on the attitude of the store. Opening a shop to do business basically depends on word of mouth and taste. If the boss (except online celebrity shops) can put himself in the other's shoes, and if you are unhappy at this table and leave angrily, you can 100% be sure that no one at this table will come to spend any more, which may drive all your friends around you and even publicize your black history. If you are free, handle things well, and customers leave the store with nothing to say, you just lose the cost of a meal, which may bring you customer recognition and loyalty, and you will treat customers carefully while ensuring good taste. I often discuss this topic with people in the industry. There is no delicious restaurant in the market that has to queue up, so why do customers go to your store to spend money? Think more about this problem and work hard in this direction. There is no bad food.