i had a mouse that escaped for a week in my house, the cat must have thought it was fake or something cos she just sat watching where it was scraping, eventually we caught it when it made a mad dash into the living room and hid behind the fireplace so my dad had to unscrew the fire lol! i caught her though. And i had a baby guinea pig (only 2 weeks old) that survived 3 days in our garden, until my dad caught it with a fishing net lol!