사마소
According to the Annals, former Shu official Xi Zheng advised Liu Shan that the appropriate response was to lament how far he had been removed from his family tombs. Liu Shan followed the advice when he was asked the same question later, however Sima Zhao quickly guessed that he had been coached in his answer, and Liu Shan admitted as much. This was noted by Sima Zhao as a sign that Liu Shan was an incompetent fool; however, some later historians believed that it showed Liu Shan's wisdom in intentionally displaying a lack of ambition so that Sima Zhao would not view him as a threat.