Lost Mouse

I'm infested with somebody's lost mouse who must have slipped out of their owner's house by accident. He or she is adorable, sleek, good with children, likes opera and long walks along the kitchen counter, and quite enjoys listening to Proust on the radio. Mouse is apparently "fixed" -- at least doesn't seem to be reproducing yet. If this is YOUR mouse please come and fetch it before I have to take it to that bad animal shelter where it will probably be euthanized. I've tried CityMousies but they don't have any room right now.