操戈入室

Explanation: Metaphor understanding of each other, find out the flaws so, on the other side of the argument to refute each other. 　　Source: Ming Hu Ying-lin, "Shao Shishan room complete account of a historical document bundle": "commentators to Liu Cao Ge burglary, Fucha by another group of natural and of the. What, then the text of the workers who wound management fold Road, Front of almost all! " 　　Examples: The turn for the villain, how can we _select_ the gentleman, ~, the rationale for the inevitable. ★ Qing Ji Yun "Notes of Summer recorded a four-Luan Yang"