Why not just call others liars?

Liar is a derogatory term, and cheating is human nature. Think about it, if you are lying to others, will you be happy if the people next to you say you are a liar?

On the other hand, if others kindly remind others that you are a liar, it is obvious that you are well-intentioned, but others will not only ungrateful, but also blame you and accuse you of being a liar.

The meaning of a liar: a person who defrauds property and reputation; People who play tricks: Jianghu. Politics. A trickster. The fourth strange situation witnessed in 20 years: "Being a gambler, liar and kidnapper outside, by hook or by crook." Guo Moruo's Hong Qubo, Chapter 4 and Chapter 5: "Some people go to Britain and America, and when they come back in three or two years, they pretend to be great. In fact, those are liars! "