Blood has gone a bit cold on the Pet Rat and babies Cindy but have never had a problem with our Pyrs with Cats, Guinea Pigs or birds. Just can't see myself offering accomodation to mice or rats unless they sneak in here unnoticed!! Then I'd be on the table. Would never harm a spider though. Jan Jan Chaplin Ariege-Roussillon Pyreneans visit PMDC Site at http://www.geocities.com/Petsburgh/Zoo/6339/