Why is Mr. Dong Bing called "Dong Bing"?

"Winter baking" is a folk saying that satirizes people's pedantry. "Mr. Dong Bing" of course refers to a pedantic and shallow person, which is used to satirize teachers who don't care about the world in private schools. The word "winter baking" comes from an interesting story in the Tang Dynasty. Wang of the Five Dynasties wrote a book "Tangrenhua", which preserved many anecdotes of literati in the Tang Dynasty. Among them, the article "Dislocation" records: "Zheng Chuan wrote the article and mistakenly called Yan Biao the queen. At that time, Xu Fang was not peaceful. He was determined to inspire loyalty, that is, to take the banner as the champion. Xie calmly asked about the situation in the temple. Standard, cold and cold, no temple. Kaoru began to realize that Tamer was just. Xunzi was laughed at by the unknown son and said,' Boss is too cold to recognize Yan Biao as Duke Lu.' Yan Zhenqing, known as Yan, is not only a famous calligrapher, but also a famous prime minister. During the Anshi Rebellion, Yan Zhenqing led the troops to resist and was promoted to the top of the seventeen counties, effectively preventing the attack of Anshi Rebellion. Tang Dezong and Huaixi made Li Xilie rebel, and Yan Zhenqing was ordered to give advice. Facing Li Xilie's surrender, he was unyielding and was killed by Li Xilie. This is the background of the poem "Mistaking Yan Biao for Duke Lu". Saying does assistant minister Zheng Xun presided over the imperial examination, there is a candidate named Yan Biao, Zheng Xun mistakenly thought that he was a descendant of Yan Zhenqing, just at that time, the buffer region regime, in order to encourage the brave, he took Yan Biao as the champion. Yan Biao came to give thanks, and Zheng Xun asked about his "temple". The ancestral temple of a famous family with official sacrifices is called "temple courtyard", but Yan Biao is poor, so there is no "temple courtyard"! At this time, Zheng Xun just woke up, and the mute ate Rhizoma Coptidis, so he couldn't tell how bitter it was. Someone wrote a poem and laughed at him, "My brain is too dry in winter." Now that the announcement is clear, what should the word "winter roast" mean? It turns out that this is from Zheng Xun's name. Fumigation, burning and baking are just synonymous with "baking"; Baking in winter, baking in winter, just fits the warm and gentle meaning of fumigation. This is the origin of the proverb "Dong Bing" and the title "Mr. Dong Bing".