Why do people who have been beheaded bribe the executioner with a smile? Tell me about it.

When I saw the word "beheaded", the first thing that came to my mind was the plot in Stephen Chow's movie "Sesame Officer", in which Ng Man Tat pretended to be a beheaded "criminal" and threatened people with perjury. Although it is a deduction, the cruelty of waist cutting can be seen. However, there are indeed examples for reference in the Qing Dynasty. In the official history of Yongzheng in Qing Dynasty, the last person who tried this method was a Henan scholar named Yu Hongtu. This man is a senior intellectual with higher education, summoned by the emperor and appointed as the official position in charge of school education in Henan Province (similar to the Minister of Education). As a result, he actually took advantage of his position to help bribers cheat in the examination room through servants, and then collected a large amount of silver bribes. It is said that in just a few years, tens of thousands of taels of silver were embezzled and accepted. As a result, Wang Shijun, the governor of Henan Province, impeached him. Yong Zhengdi was furious and ordered the case to be handled strictly. As a result, he obtained conclusive evidence of bribery through his wives and concubines at home. Yongzheng hated it and executed it with a stroke of his hand. The use of the most cruel execution method depends on Hongtu's in-laws Zou to supervise the execution, so the last execution of the criminal law of the Qing Dynasty began. According to records, Yongzheng instructed the executioner to die slowly (that is, during the execution, the victim would die for several hours because of the integrity of the internal organs). In this way, after the execution, I saw Yu Hongtu's upper body rolling wildly on the ground, in an indescribable state of pain. Since then, Yong Zhengdi has abolished this criminal law by decree.