Xiahou Ba
In 249, after a coup d'état by Sima Yi against Cao Shuang, a lot of the latter's affiliates were also put to death; being a close friend and associate of Cao Shuang, Xiahou Ba was sensitive to the political developments and grew suspicious of Sima Yi's faction. Soon, Xiahou Xuan, who had the staff of authority to command troops over Liang and Yong provinces, was ordered to the capital under the guise of a promotion. Fraught with dread, Xiahou Ba discussed the issue with Xiahou Xuan, and persuaded the latter to flee with him to Shu. But Xiahou Xuan refused and said "I won't live as a guest in a kingdom of barbarians!" What further perturbed Xiahou Ba was the person who succeeded Xiahou Xuan's former position was none other than Guo Huai, whom Xiahou Ba had a personal feud with. Therefore, Xiahou Ba embarked on his lone journey into Shu.