The allusion to idioms about dogs is: Rooster crows and dog robbers
During the Warring States Period, Lord Mengchang of Qi State liked to recruit all kinds of people as his guests, and he was known as having three thousand guests. He welcomes all guests, allowing them to perform their duties to the best of their ability, and providing room and board to those without talent.
Once, Lord Mengchang led a group of guests on a mission to Qin. King Zhao of Qin kept him and wanted him to be the prime minister of the country. Lord Mengchang did not dare to offend King Qin Zhao, so he had to stay. Soon, the ministers advised King Qin: "It is not good for Qin to keep Lord Mengchang. He is from a royal family, has a fiefdom in Qi, and has family. How can he really serve Qin?" King Zhao of Qin thought it was reasonable, so he changed his mind. , put Lord Mengchang and his men under house arrest, just waiting to find an excuse to kill them. King Zhao of Qin had his most beloved concubine. As long as the concubine said one thing, King Zhao would never say another. Mengchangjun sent someone to ask her for help. The concubine agreed on the condition that she would be rewarded with a piece of Qi's unique fox white fur (a fur coat made of white fox armpit fur). This made things difficult for Lord Mengchang, because as soon as he arrived in Qin, he dedicated this fox white fur coat to King Qin Zhao. At this time, a guest said: "I can get Hu Baiqiu!" After that, he left.
It turns out that this hanger-on is the best at stealing things through dog holes. He first found out the situation and found out that King Zhao loved the fox fur so much that he couldn't bear to wear it for a while and kept it in the fine storage room in the palace. He took advantage of the moonlight to escape the eyes of the patrollers, easily got into the storage room and stole the fox fur. The concubine was very happy to see Hu Baiqiu. She tried every means to persuade King Qin Zhao to give up the idea of ??killing Lord Mengchang, and prepared to bid farewell to him in two days and send him back to Qi.
Jun Mengchang did not dare to wait for another two days. He was afraid that King Qin would regret it, so he immediately led his men to secretly ride horses overnight and rush eastward. It was midnight when we arrived at Hangu Pass (in what is now Lingbao County, Henan Province, which was the east gate of Qin at that time). According to the laws of the Qin State, Hangu Pass does not open until the rooster crows every day. How can the rooster crow in the middle of the night? When everyone was worried, they only heard a few roosters crowing "Oh, oh, oh", and then all the roosters outside the city gate began to crow. It turns out that another of Mengchangjun's disciples can imitate the crow of a chicken, and the chicken will crow immediately after hearing the first crow. Although the soldiers guarding the gate felt strange, why did the rooster crow before they even slept? But they had to get up and open the door and let them out according to the regulations.
At dawn, King Qin Zhao learned that Lord Mengchang and his party had escaped, and immediately sent troops to chase them. When we chased him to Hangu Pass, he found that he had been out of the pass for a long time.
Mengchangjun left Qin and fled back to Qi with the help of the roosters and dog robbers.
The meaning of chicken crow and dog thief is: referring to trivial skills. Also refers to sneaky behavior.