Lü Fan
Bu Zhi once wrote a memorial to Sun Quan to tell him that he heard from Wang Qian () and other defectors that the Wei forces were planning to fill up the Yangtze River with sandbags and launch an attack on the Wu-controlled territories in Jing Province. Sun Quan doubted it and said that if that really happened, he would have 1,000 cattle slaughtered for a feast in Bu Zhi's honour. Some years later, he told Lü Fan and Zhuge Ke: "Every time I read Bu Zhi's memorial, I can't stop laughing. The river has existed since the beginning of life. How can anyone use sandbags to fill it up?"