 He was later invited by the great general Guo Ziyi to serve as Guo's secretary, and later made a "Jiancha Yushi" (監察御史), a mid-level imperial censor.At this time, he was said to be often talkative and jocular, and he often insulted his colleagues.As a result, his relationship with a colleague, Bi Yao (畢耀), which started with mutual jocular insults, evolved into frequent serious disputes such that they accused each other of faults.