Ever since I had a cats I also had suddenly mice. So if you suffer from Mice phobia don't read further. I would do the same when it comes to spiders.
My cats bring cute little mice in the house, proud of their prey and probably with the loving intention to show me what good hunters they are. The only problem is, they play a bit with the mouse and then go to other tasks, and the mouse looks for a comfortable, cat safe place to stay. Usually in the living room under the cupboard. I try to get him or her out and put some cheese on the floor, which the mouse eats with pleasure, cleans her whiskers and before I have time to catch her with help of a Newspaper folded into a cone, it has disappeared again under the cupboard. So far I have always managed to get the mouse out alive !
Unfortunately, sometimes it happens that the mouse doesn't survive the game, and it's really not a nice feeling when you climb out of your bed and step barefoot on a mouse corpse.
One day, when still half asleep I wanted to prepare my coffee, I saw a mouse head looking at the cat food with hungry eyes. I never found the body or the tail, they landed probably in one of my cats stomach.
My cat Rosie prefers toy mice which are more bearable. Quite the opposite to me she is a little housewife. During the nights she collects her mice and put them in the water bowls to do her laundry. I dry them for her on the radiator. Sometimes she also decorates my slippers with a mouse, or she puts them in the food bowls which is not so appreciated by the other three.
Therefore follow my advice, don't take a cat if there are mice around where you live !