(2) One-time Crisp Event: Cao Cao received one-time Crisp and wrote "One-time Crisp" on the box. When Yang Xiu saw it, he ordered people to eat the whole box. Cao Cao asked him why he did this, and he replied, "The box says' One person eats one crisp'". How dare you disobey the orders of the Prime Minister? 」
(3) Killing people in dreams: Cao Cao pretended to be good at killing people in his dreams, even killed a valet and pretended to cry bitterly, reburied that person as an example. Yang Xiu knew what Cao Cao was thinking, and he wisely exposed Cao Cao.
(4) Wu Zhi incident: Cao Pimi invited Wu Zhi to the inner government to discuss Cao Cao's intention to establish a prince, but he hid Wu Zhi in a big jar for fear that anyone would know. When Yang Xiu knew this, he told Cao Cao. As a result, Cao Pi really used a big basket of silk next time, and Cao Cao suspected that Yang Xiu wanted to frame Cao Cao.
(5) Yemen incident: In order to test the talents of his two sons, Cao Cao asked the doorman not to let them go out. Yang Xiu taught Cao Zhi to kill anyone who dared to stop him. Although Cao Zhi went out successfully, Cao Cao was very angry when he learned that Yang Xiu had taught him.
(6) Answer to Teaching: Yang Xiu once wrote more than a dozen "Answer to Teaching" for Cao Zhi. Every time Cao Cao asked Cao Zhi about military affairs, Cao Zhi always answered irrelevant questions, and Cao Cao became suspicious. Later, Cao Pi bribed Cao Zhi to steal those "answers" and informed Cao Cao. When Cao Cao saw it, he had the heart to kill Yang Xiu.
(7) Chicken ribs incident: Cao Cao only said that the slogan in the evening was "chicken ribs", but Yang Xiu "used" his wisdom and came up with the real meaning of "chicken ribs", telling soldiers to pack their bags and prepare teams, which of course led to fatal disaster.