When Tubby and I lived with my parents, he had the pleasure of "meeting" a few real mice face to face. We always knew when there was one around because he would sit for hours on end just looking at the closed cupboard door, or at the heaters. WE didn't see anything for days, but Tubby would not leave his post, and sure enough eventually we'd get to watch him chase the mouse around the house. The funny part was that my mom would get in on the chase too, to try and get the mouse away from Tubby. She was worried he would hurt it bad enough - but not kill it - and it would crawl into the heat pipes and die, then smell to high heavens in the house. We had some quite comical evenings back then.

Here's an old picture. My mom thought she would make it easy on Tubby and leave the cupboard door open. Notice the mousetrap too....she wasn't taking any chances.