Shougouling is located in the east of Baiyun Mountain in Guangzhou, and it is named after it looks like a thin dog. It is said that during the Hongzhi period of the Ming Dynasty, Sandou Lake Nanliu in Lunwenwei, Guangdong Province won the first prize of liberal arts. Liu Xiankai is narrow-minded and does harm for the people. He thinks that he lost the election not because his writing style is inferior to that of Lun Wenxu, but because Guangdong's feng shui is good. As long as the geomantic omen in Guangdong is gradually destroyed, Lun Wenxu will walk on the lame road. When the news of the earthquake in Guangdong reached the capital, Liu Xiankai thought that the time had come, so he made up a poem to the effect that there was "Long Mai" and "imperial spirit" in Shougouling, Guangdong Province, and an emperor would be born in thirteen years, and he made a big rumor. After hongzhi emperor knew it, he sent eunuch Liu Jin to find Mr. Chen Qingfeng, a Feng Shui master. Because Chen Qingfeng had been bribed, he told the emperor that Long Mai was hiding in the thin dog ridge, and he wanted to be emperor in the future. At the end of the Western Han Dynasty, Zhao Tuo established Nanyue State in Guangdong, calling himself the King of Nanyue, so hongzhi emperor believed it. Chen Qingfeng also told the emperor that as long as the first frost fired at the thin dog ridge that day, the "imperial power" of the "Long Mai" in the thin dog ridge could be interrupted, so hongzhi emperor ordered the Guangdong prefect to fire at the thin dog ridge on the first frost that day. Gao Feng is a corrupt official. He asked the emperor for two hundred and two thousand pieces of silver on the grounds that he needed money to fight the thin dog ridge, and then hit him. It is only effective to fight every year, and hongzhi emperor allows it. Since then, until the Ming Dynasty, there has been a "spectacle" in which the Japanese artillery hit the thin dog ridge in Guangdong in the first frost.
After the Qing government ruled China, anti-Qing people created another rumor in order to overthrow the Qing government. The Qing government was afraid, so the first frost appeared for another ten days. As a matter of fact, the shooting in the thin dog ridge was the product of corrupt officials' greed for money and the emperor's fear of being overthrown. According to the allusion of "shooting at the thin dog ridge", Cantonese people derived "if you don't fight, you will defeat the enemy" (meaning you can't do it without fighting). Shooting thin dog ridge in Ming and Qing dynasties has also become a joke.