MUE.... we live next to farm land and we have field mice in the area and we had an issue with them getting in basement... so our 2 natural solutions are... 1. we don't kill snakes that we find in the yard. 2. we bought this stuff called Shake Away at hardware store...its organic rodent repellent...(its usually made of urine of a predetor)... we shake it around the parameter of our house and then around our cars especially in the winter... It really really works...

we also had to clean out basement and my H said he found lots of nests with lots of babies.(I did not ask what he did to the babies and he did not tell me..). and then we also had the exterminator come too... ironically the worst case of mice we got in the summer but in the winter they get up in the car because its warm and then they chew on wiring...

Is your crazy cat a mouser?