lure the wolf into the room [yǐ nlá ng rù shù]
Basic definition
Introduction: attracting. Draw the wolf indoors. Metaphor is to introduce bad guys or enemies into the interior.
derogatory
Chu Chu
Yuan Zhang Guobao's Luo Lilang: "I didn't lead the wolf to my house; Finding a dragonflies drilling ears
Classic reason
There was a shepherd herding sheep in the valley. When he saw a wolf following him in the distance, he was always on his guard. Months passed, and the wolf just followed from a distance, not close to the sheep, not to mention hurting a sheep. The shepherd gradually relaxed his guard against the wolf. Later, the shepherd thought it was good for the wolf to follow the sheep, so he didn't have to be wary of other wild animals. Later, he simply regarded the wolf as a shepherd dog and told it to look after the sheep. When the shepherd saw that the wolf managed the sheep well, he thought to himself, People say that the wolf is the worst, but I don't think so ... One day, the shepherd had something to go to town, so he entrusted the sheep to the wolf, and the wolf agreed. The wolf estimated that the shepherd had entered the city, so he howled loudly in the forest. Its howling attracted many wolves of all sizes. All the sheep were eaten by wolves.
The shepherd didn't understand the nature of the wolf, so he was deceived by the hypocrisy of the wolf. The idiom "inviting a wolf into the room" is a metaphor for bringing bad people into the house.