We have Border Collies and Australian Shepherds, who get along fine with all the ferrets, as well as any other creatures we happen to be fostering. As a matter of fact, when we take ferrets to the park, it is two of the Borders who keep them together. Each dog has "his" special ferret, and is "assigned" that fert to watch- under our supervision, of course, and follows the fert around, and will even pick them up gently and bring them back if they get too far. The ferrets are fine with this- they go limp. Now, I don't recommend this- it has taken ALOT of training, but for our needs it works fine. Maybe we could have ferret herding trials? [Posted in FML issue 3608]