Why did Sima Yan put three things in Liu Chan's coffin, which humiliated the ancestors of Liu Chan for eight generations?

Sima Yan put sandals, rhinoceros horn cups and pleated skirts in Liu Chan's coffin. Among them, sandals are for Liu Bei, and rhinoceros horn cups and skirts are for Liu Chan. These three things are intended to belittle Liu Bei and Liu Chan. The things buried in the coffins of a generation of emperors are used to insult themselves. Liu Can Chen's descendants still live proudly in the world?

We all know that Liu Bei made a living by selling shoes in his early days. Although Liu Bei is called a descendant of the royal family, it is only a sideline, and Liu Bei's family has long since declined. His father also died young. Without his father's help at home, Liu Bei can only make a living by selling shoes. It is precisely because Liu Bei weaves straw sandals for a living that Sima Yan is very disgusted with this. In ancient times, the work of weaving straw sandals was done by inferior people, and those superior people would not do such a thing. It was Sima Yan who insulted Liu Bei.

Besides straw sandals, Sima Yan also prepared rhinoceros horn cups and pleated skirts to insult Liu Chan. We know that Liu Chan is a very incompetent person. When Shu was attacked by Wei, there was a saying that Shu easily ceded his country to Wei. He was made an Happiness Duke in Wei. Once, I hosted a banquet and asked him if he still missed Shu, but he said something ridiculous like "I am very happy here, but I don't want Shu". And Liu Chan also likes to watch beautiful women dance, and likes women. Such an incompetent person without dignity is the reason why Sima Yan insulted him.

Because these three things are used to insult Liu Beihe, people all over the world feel the incompetence and meanness of the Liu family. This is why Liu Chan's ancestors were humiliated for eight generations.