An example of the hypocrisy of Cao Cao's character

In the state of Wei, there was an upright official. He was a speech officer (responsible for remonstrating) who often attended Cao Cao's banquets. Every time Cao Cao rose, the official came forward to remonstrate. Cao Cao had to restrain himself, and Cao Cao was very unhappy.

when I was in Tongquetai, Cao Cao's poetry rose. The official saw the words "crow circling the tree three times" in Cao Cao's poem, so he advised Cao Cao that it was unlucky. Cao Cao pretended to be drunk and killed him directly with a knife. After waking up, Cao Cao pretended to be remorseful, cried and told the official's son that he had killed his father by mistake and buried the official with a heavy burial.