I had a ferret (he´s still alive but living with my Dad, brother ans sister now), and when he was living with me, he used to steal anything from me: furry things, my brush, plastic bags, clothes and even remote controls! if something would dissapear at my house I was sure of the right place to look for, the craziest part is that he made a big hole at the bottom part of my bed and I didn´t notice until I couldn´t find him one day.

And then I heard some noise coming from under my bed, he made a big enough hole to put into all the stuff he stole, everything was there in a sort of "apartment" he created, I even found a barbie doll from who knows where. I found it sooo funny, that he not only kept my stuff (the remote control from my tv and dvd), but also that he had his own apartment.

I didn´t have the heart to take all my stuff from "his condo", so I just took what was absolutely neccesary.
He´s now living with my dad and sibiling because they have more time for him. A few months after he stayed at his new home, my brother called me to say: Koko has created a type of "shelter" in my drawer and stole a lot of things from Monica(my sister) and Dad.

But again, nobody had the heart to take out the things, so he´s still living with them, very spoiled and of course, with a new self-decorated "apartment" :)