Years ago, I had a problem with mice getting into my feed in the barn. I mentioned that I need to get a cat, and a few days later, a box full of them was left in the barn. Took me years to figure out the culprit. Anyway, it worked, as that mama cat, and then later on her kittens, kept the barn mouse free. I have a cat now, but he's like me......old and lazy, so I have mice again.