Just wanted to let you know that we appreciate groups like yours that do go through the hastle of dealing with PetSmart to find homes for these animals. My rat, McCoy came from such a rescue group working with Petsmart, and he was a pitiful, pathetic guy, permanently scarred from mites and with a head-tilt, scared and never been handled- but now is such a sweet and cheeky guy! In my opinion, though, their requirements for your groups should be on a bell-curve- depending on the number of workers you have.