Ah, wait until he deposits a fur ball just where you put your foot getting out of bed in the morning. Brings in mortally wounded mice/voles and lets them go for you to find cowering behind/under furniture and for you to dispatch. Or eats said mice/vole leaving just the entrails stuck to the carpet. Of course there will be the odd "bad vole" the semi-digested remains of which are vomited up where ever cat happens to be, on the sofa, your bed, under the bookcase...
So she'll be the one doing all the cleaning up and small mammal dispatch then?