What is fishing in Cantonese?

To explain "making money", first explain the unwritten rules of the catering industry in the past. It turns out that the most important thing for the catering industry to make money is to control operating costs. Apart from chefs who are qualified to cook well, many people patronize, and the local tableware is clean and the service is good. Operating costs include wages, lights, water, electricity and food procurement. Sometimes the boss is in charge of food procurement, but sometimes he is appointed as an employee of the purchasing department by a so-called trustworthy employee or relative (called purchasing). In the past, they were simple together, and they were basically responsible for bookkeeping. They can be said to be housekeepers, and it is very easy for one person to enrich themselves above ten thousand people. Generally speaking, cooking oil and wine are the easiest to tamper with, obviously lard, and peanut oil is the bookkeeping. Obviously, it is 1 ton of alcohol. After adding water, it becomes 2 tons of alcohol, and the difference is naturally safe. Therefore, buyers often use their work to enrich themselves, and regularly collect kickbacks from vendors such as rice, oil, salt, vinegar, tea, fish, melons and vegetables, so as to obtain benefits and benefits in this way, which is called "fishing for oil and water". Moreover, in diet, more oil and less water are naturally full of intestines. The word "fishing for oil and water" was widely used later, which means to use authority and means to obtain some benefits at work without the boss's knowledge.