I had a mouse infestation in my apartment building a few years ago and the darn landlords wouldn't call in an exterminator. They'd just keep putting out traps for the mice, so every morning I had dead mice to deal with. They had a field day in my kitchen. I even had them popping out at me when I openned kitchen drawers. It got so bad that I had to wash my plates and cuttlery before I'd use it to eat. Now everything is locked up tight in really heavy duty plastic tupperware containers. I particulary enjoyed it when they'd run accross my living room floor while I was watching TV. I finally got rid of the mice by installing these sonar device thingies. You plug them into an electrical outlet and they emit noise on a frequency that humans can't hear, but that mice really don't like. I now have one in my kitchen and my living room. I forget what they're called but I found some on-line when I googled mice deterents or something like that.