Liu Bei led an army to recruit Yuan Shu, and Zhang Fei stayed in Xuzhou. Zhang Fei entrusted all the chores to Chen Deng, and he was only in charge of the military.
One day, Zhang Fei had a large feast and invited officials of all sizes to come and eat wine. After everyone sat down, Zhang Fei stood up and said, "When my brother was leaving, he told me to drink less, for fear that I would drink and make a mistake. Today we can have a good drink, and from tomorrow everyone will have to quit drinking and help me defend the city. "After saying that, I personally poured wine for the officials one by one."
In front of Cao Bao, Cao Bao held down the wine glass in his hand and pushed back, "I'm sorry, I never drank." Zhang Fei showed an unhappy look and said, "If there are any men we fight on the battlefield who can't drink, I will definitely make you do this cup." Cao Bao was afraid of Zhang Fei and had to reluctantly drink a cup.
Zhang Fei poured wine for everyone, ordered people to take a large cup, poured himself a drink, drank dozens of cups in a row, and unconsciously, he was already drunk. He still stood up and staggered to pour wine for everyone, and the first one came to Cao Leopard again. Cao Bao cried and mourned, but just pushed back. Cao Bao didn't care how Zhang Fei persuaded him, but he just refused to drink. This made Zhang Fei angry, and he shouted loudly: "You disobey the military order, you should beat a hundred military sticks!" Zhang Fei was angry and called for soldiers to take down Cao Leopard on the spot.
Chen Deng hurriedly blocked, and Zhang Fei did not follow. Cao Bao panicked and had to plead, "Third General, please look at my son-in-law's face and spare me!" Zhang Fei didn't listen to it, but instead of cheering on the fire, he jumped like thunder and shouted: "I didn't want to hit you, you dared to lift out Lü Bu to scare me, I want to beat you, beating you is beating Lü Bu!" All the officials gathered around to persuade zhang fei to ignore it, pressed Cao Leopard to the ground, and personally beat fifty lashes. Everyone begged for forgiveness on behalf of Cao Bao, and Zhang Fei gave up.