I'm glad you're keeping Marty. I volunteer at a local shelter and we've had ferrets that came in biting to the bone who have become very gentle with a lot of TLC. OEven the ones who still bite once in a while aren't as serious about it. It sounds to me like that pet store you got Marty from has no business selling ferrets. If they knew what they were doing, MArty probably wouldn't have turned into a biter in the first place. [Posted in FML issue 0732]