Where did the allusion of "the emperor is not in a hurry, the eunuch is in a hurry" come from?

The phrase "the emperor is not in a hurry, the eunuch is in a hurry" is often heard in life. Now this sentence means that someone is not in a hurry to solve his own affairs, but that irrelevant people around him are really worried about him, which is ridiculous and derogatory. But most people don't know the historical origin of this sentence, and they don't know what the eunuch is in a hurry. Let me let you know.

In ancient times, the emperor was the supreme of the Ninth Five-Year Plan, but even so, the emperor could not do whatever he wanted, and his sexual life was out of control. These are all arranged and regular, that is, they obey the supervision and arrangement of eunuchs. Of course, these rules are useless to some decadent emperors. In the Qing Dynasty, when Emperor Qianlong had sex with his concubine, eunuchs would eavesdrop outside.

These eunuchs are not daring, but performing their duties. They want to know whether the emperor has finished what he has to do. When the eunuch heard that the emperor had finished work, he would shout "It's time!" At the door. The purpose of doing this is to let the emperor end it quickly and not dwell on beauty. When the emperor didn't want to leave, the eunuch kept calling the emperor finished.

These eunuchs dare to do this because there are regulations in the Qing palace that the emperor and his concubine can't have sex for more than an hour. When the time is up, the eunuch will shout at the door for the emperor to end it quickly. They must do the same. If they don't do this, they are dereliction of duty and will be punished accordingly. They don't want to be punished. Although doing so sometimes makes the emperor unhappy, the emperor can't say anything.

This is the origin of the phrase "the emperor is not in a hurry, the eunuch is in a hurry".