《韩非子》上有这样一个故事,“宋人有酤酒者,升概甚平,遇客甚谨,为酒甚美,悬帜甚高,然酒不售。酒酸,怪其故,问其所知闾老者杨倩。倩曰:‘汝狗猛也。’曰:‘狗猛则酒何故而不售?’曰:‘人畏焉!或令孺子怀钱,挈壶翁而往酤,而狗起而龅之,此酒所以酸而不售也。’”卖的是美酒,待客殷勤,份量又足,还把酒旗悬挂得高高 “Han Feizi” has such a story: “Song people have alcoholism, they are evenly raised, and they are very loyal to the guests. They are very beautiful and they have very high standards. However, wine is not for sale. As we all know, the old man Yang Qian. Qian Qian: ”The dog is fierce too." Hey: ’Dog Meng is why the wine is not sold?’ Hey: ’People fear! If you make money, you can’t make money. And the dog started to stir up, and the wine was sour and not sold.” “The wine was sold, the hospitality was gracious, the weight was sufficient, and the wine flag was hoisted high.”