"This person has little ability, he can go up by taking the back door" Whenever we comment on something that feels shady, we always like to use the three words "go through the back door" to comment. So what is "going through the back door"? So why use the term "backdoor" to describe the unjust enrichment that others seek?
The first theory began to persecute the Yuan yu party after Cai Jing became prime minister. Once, When Song Huizong and Cai Jing and other ministers were watching a play together, there was a monk in the play, who took the document and went to the prime minister to sign it. When the prime minister saw that the monk's ordination was issued by Yuan Yu in the third year, he confiscated and destroyed it, and let the monk return the world. Another Daoist priest lost his degree, and his degree was also three years old. The prime minister ordered someone to rip off the Taoist priest's Taoist clothes and let him be a common man with a flat head. Later, another person in the world, because he was recommended during the Yuan Dynasty, was rejected by the Ministry of Rites and driven out. After a while, the housekeeper of the Prime Minister's house came over and said to the Prime Minister: "I received a thousand yuan of material money today, but these money were all minted during the Yuan Dynasty, and this thousand guan is still needed?" After listening, the prime minister quietly told the butler: "Yes, don't go from this side, go through the back door." Hearing what the prime minister said, the person next to him raised his stick and hit the prime minister, scolding while beating: "You originally only need money to be the prime minister." Since then, there has been a talk of taking the back door.
The second theory is that "going through the back door" turned out to be a positive word for people's convenience, related to Bao Zheng. Legend has it that after Bao Zheng became the governor of Kaifeng, there have been no people to file a complaint. Later, Bao Zheng discovered the reason, the gate of the official palace was heavily guarded, and the people wanted to enter the door to get bribes and money. Bao Zheng was furious, immediately punished the gatekeepers, and decided to open the back door and let the people come and go at will to file a complaint, so there was a "convenient door" and "walking through the back door". Later, with the evolution of the times, "taking the back door" slowly lost its original meaning, and gradually became the meaning of relying on others to achieve their own improper goals.