One theory as to why ferrets are so prone to adrenal gland disease involves the early age at which they are altered. It's usually done by the time they're 6 weeks old. The theory is that removing the source of sex hormones this early doesn't allow the other glands and organs dependent on those...
They are opposites - apples and oranges. The ferret is a predator and exhibits crazy weasle behaviors, while the chin is a prey animal and would probably act less crazy. RESEARCH, RESEARCH, RESEARCH! I've had ferrets, and they can require a lot of supervision. Again, I'd research the heck...