maybe he doesnt' know why we are telling him to quarantine. No one really explained that.

Pink, dunno if you know, and im sure you do, but i am going to hit on it anyway. New balls wherever you get them can be full of mites, disease or parasites and on top of that a new ball is stressed out enough in a new environment to be put in with another ball. Quarantining the new ones obivously keeps what could be out of your current critters. get what i am saying? just thought i would throw it out there. Rubbermaid is your best bet, Very easy and inexpensive.