Cats can get lost. Because our domestic cats don't have much exposure to the outside world and are naturally timid, they often run off and eventually get lost. If your cat gets lost, you can check the security camera footage in the area where your cat was last seen, calling its name as you search. 
Methods to prevent your cat from getting lost:
1. Whenever you go out, you must put your cat on a leash and hold the leash securely. Especially in crowded streets, you must keep the leash firmly in place to prevent your cat from getting lost.
2. When your cat is at home, always keep doors and windows closed, or open windows but make sure the screens are closed. This way, even if the cat sees the outside world, it won't be able to escape.
3. Attach a microchip to your cat. This way, by simply checking the microchip, you can accurately know your cat's information, thus allowing the cat to...
Mimi can stay with her owner for a long time to prevent the cat from getting lost.