So I'm just curious how this works...those of you who have pet rats that are free to roam your homes...how long did you wait to give them free range? Did you train them first...what kind of trouble do they get into? Aren't you afraid they'll escape the house? I can't let mine have free reign and even my dog is kenneled when I'm no home. Do you keep them in cages when you're not around? I've heard several people talking about sleeping with their rats and it sounds so...not odd exactly....but exotic. Sorry if this offends anyone, I'm just really curious.