How to better deal with unreasonable guests in the service industry?

Ha ha! Calling the police is only one of the ways to solve the problem, and it is also the way to choose when there is no way out! People who work in the service industry, especially the catering industry, will always encounter these problems! When you encounter these problems, you can only submit to humiliation, and you really realize that customers are God! It is this that breeds these problems! In fact, these problems are not insoluble! A friend of mine opened a restaurant in Jinan. He put two signs in a prominent position in the hotel. One of them said, elegant hall! It says next to it: In order to keep your elegant demeanor, please drink moderately! Another said, problem trip! It says next to it: We found a small problem in our hotel! You have a waiter to pay for a dish! My friend told me that few people would get drunk and make trouble! And few people find fault! Because customers are picky, the staff have already done their duty! And the business is also very good, and it has not affected the business because of this. On the contrary, old customers always like to bring friends to his hotel for dinner!