My petco here doesn't care if you are buying the mice for feeding, but the petsmart only carries frozen. I don't think that the petsmart here even feeds their snakes, judging by looking at them, I think that they think it is inhumane. Can somebody let me know how to switch your BP over to corn on the cob? Been trying but having no luck. I only buy corn that has fallen from the plant though, as I don't want to hurt the plant from picking it.