() Stealing books-too smart to admit mistakes.

Jiang Gan was outsmarted for stealing books.

Allusion: Before Battle of Red Cliffs, Jiang Gan told Cao Cao that he and Zhou Yu were classmates and he was willing to convince Zhou Yu. After Cao Cao agreed, Jiang Gan went to the other side of the Yangtze River. As a result, Zhou Yu's cleverness not only made Jiang Gan have no chance to say anything to persuade him to surrender, but also arranged a plan to make Jiang Gan think that Cai Yun, a former subordinate of Jingzhou Liu Biao, secretly hooked up with Zhou Yu, so he stole the so-called evidence, and the letter of adultery between Cai Yun and Zhou Yu made Cao Cao beheaded.