Earlier, there were countless such scenes in TV and movie works, and their purpose was just to eat "the king's meal" or blackmail a couple of dates. Of course, some of them are successful and some are unsuccessful. The success may be to eat soup and then pat your ass and leave. The unsuccessful ones are likely to be sent to the police station except for the money. As for it, how do restaurants generally identify whether cockroaches are deliberately placed for guests?

first of all, we should say that it is generally difficult to find a snake, insect, rat and ant in a restaurant that conforms to the national regulations and maintains a good sanitary environment for a long time. However, if it is a small restaurant on the roadside, it is inevitable that insects and flies will enter the room because it is open for a long time, so it is necessary to kill insects in time. As for the food and ingredients, I believe that regular restaurants and restaurants will have special people to take care of them every day, so the chances of being able to turn out cockroaches are particularly low. Moreover, even if there are snakes, insects, rats and ants on the plate, they will not be very big, and the insects in this area have their own characteristics. Especially as a restaurant, cockroaches "cultivated" by themselves are generally different in appearance. What is important is that cockroaches in ingredients have already "tasted" through cooking. It can be seen that if it is a cockroach that someone sincerely used to blackmail, it will be known from two aspects. On the one hand, the cockroaches specially brought by "customers" are regardless of species and size. On the other hand, because they are doing things that don't show their faces, they are also in a hurry to put cockroaches away, and they are generally not buried deep, not to mention that bugs can change color when they taste. In short, as long as you are careful enough, you will know at a glance whether it is the other party's intention or the mistake of your restaurant.