Battle of Fancheng
When Guan Yu embarked on the Fancheng campaign, he left his subordinates Mi Fang and Shi Ren behind to defend his key bases in Jing Province – Nan Commandery (南郡; around present-day Jingzhou, Hubei) and Gong'an County. Guan Yu had all along treated Mi Fang and Shi Ren with contempt. During the Battle of Fancheng, when Mi Fang and Shi Ren failed to ensure that sufficient supplies were delivered to Guan Yu's army at the frontline, an annoyed Guan Yu remarked, "I will deal with them when I return." Mi Fang and Shi Ren felt very uneasy after that.