not all cats have enough energy, interest or training to hunt mice. Kittens typically have to be taught by the mother to easily become a mouser. Well-food indoor kitties might just see the mouse as a toy, and grow quickly bored of it after scaring it half witless. Shelters and adoption agencies often do not know if a cat is a good mouse hunter, and generally do not test for this. Sometimes this information is available, but usually not. While many mousers are great pets as well, not all are. "Barn cats" may not be socialized well with humans, although used to hunting mice for food. Even if you do not have a cat, you can use used kitty litter to deter mice. Place tubs of used kitty