Ordinarily, people change their name because it is inelegant, but Cheng did it the other way around. And because he did it at the age of 77 a lot of documentation had to be changed with it. Household registration officials asked him to reconsider, but he persisted, and in the end the officials had to relent and allow him to change his name for "special reasons."
通常改名都是將不雅的名字改掉，而他卻是反其道而行，尤其是 77 歲才改名，許多證件要跟著改，戶政人員要他三思，他卻堅持，最後戶政人員只好以「特殊原因」為理由同意改名。