The mouse married his daughter.

The little mouse steals oil to eat.

Mouse proverb:

A mouse crossing the street is chased by everyone ―― the object of public condemnation; Extremely unpopular person [person or thing that everyone hates]

A mouse spoiled a pot of soup.

Rats can't keep food for the night.

The mouse looked at the warehouse and saw everything.

The cat bites the cat and the mouse laughs.

The little mouse caught all the light, but the big mouse panicked.

The story of the mouse:

In the early days of the Three Kingdoms, Emperor Xian of Han took Prime Minister Cao Cao and uncle Liu Bei to hunt. In order to show his strength, Cao Cao kept pace with Emperor Xian of Han Dynasty. Emperor Hannan saw a rabbit not far away and asked Liu Bei to shoot it, saying that he wanted to see his uncle's archery. Liu Bei hurriedly drew his bow and shot an arrow, which just hit the rabbit. Xian Di even praised his archery. Nandi saw another big deer and missed three arrows in a row, so he told Cao Cao to shoot it. Cao Cao took Nandi's golden arrow and hit the deer with one arrow. When the soldiers saw the golden arrow shooting the deer, they thought it was Xian Di's. They all shouted "Long live", and Cao Cao proudly stood in front of Xian Di and accepted the cheers. Guan Yunchang can't stand it. He wants to cut Cao Cao with a saber. Liu Bei quickly hinted that he should not act rashly. Afterwards, Guan Yunchang asked Liu Bei why Cao Cao was not killed. He said, "Get the boat out. Xian Di is with him."

"Get the mouse out of the trap" means that the mouse is very close to the utensils. If you hit the mouse with something, you are afraid of breaking the utensils near the mouse. Now it is often used to describe people who are afraid to let go of things.