In ancient times, the status of catching fast was very low, most of them were “untouchables”. One of the family had done a quick catch, and the third generation could not take the imperial examination. In the eyes of the ancients, catching fast is a crime of offending people. It is a kind of “smuggling”. Those who do bad things can only be bad people. Therefore, in the Tang Dynasty, the official position is also called bad. A person who is bad or who is quick to catch is called a bad handsome.