I dug and blocked it, but if it is blocked, I will definitely dig again. Rats are famous for their ability to dig holes, so it's better to add some materials when blocking holes. For example, before blocking, get some food with rat poison, preferably the kind that is very oily and fragrant, and remember to throw it in (because rats are smarter, they will be trapped later, so it is best not to make them suspicious), and then put some on the materials that block the hole.
If you don't dig through, there are two ways to deal with it: 1 Ignore it, anyway, people dig holes to survive; 2. Find out where it is (knocking, listening to the sound), try to make a small hole, fill it with Chili water (put spicy things such as pointed peppers, peppers and even onions in the pot to make a bowl of thick soup), and then plug the small hole.
Finally, it should be noted that household hygiene should be cleaned frequently, and garbage should arrive on time every day. Otherwise, it is easy to attract these "dark creatures" and there is no need to keep a cat. Now all the cats in the city have become pets. If you really want to find a cat that can catch mice, I'm afraid you have to go to the country to find a big cat that can catch mice. I can't do it if it's small. I had one before and finally became a pet.