I am an engineer who has built both high-quality projects and shoddy projects. I have always had the idea to write about my work experience, especially the construction process of the shoddy project. But I have been hesitant. As the saying goes, "Happy families are all the same, and unhappy families are all different." The construction of high-quality projects is nothing more than the right time, location, and people. But you have worked hard, worked hard, and thought about it for several years. Looking back, how come you built a shoddy project? It involves a lot of things and a lot of people. There are many participants in a project, and everyone is more or less involved in the formation of the shoddy project. Many of them had no choice but to face unspeakable pressures and became passive participants in the project. Some of them we meet often, and some of them are good friends. If we rush to write about the construction process of those shoddy projects, I'm afraid it will cause a lot of misunderstandings and embarrassment. Until one day, while reading "Water Margin" again, I suddenly felt like a wake-up call: There is a green-eyed tiger named Li Yun on Liangshan Mountain who specializes in "building and repairing houses". I can also use his words to write down the construction process of the tofu project. Hence, this unseemly article.