I've had Ferrets for 30 yrs. I started out with a single. I found out that they are social animals and do better in pairs. I then went to pairs for a while. I had a bonded pair once and one passed away. The other, even though he was young (3yrs) and in perfect health just quit eating. A trip to the vet determined that his organs were just shutting down for no obvious reason. Despite all our efforts he passed away within 30 days of loneliness and mourning the loss of his mate! This was an extreme case but does show that ferrets DO mourn the loss of a mate. I now maintain at least 3 but no more than 6 at any given time. This way they all become friends and when one passes the others have a shoulder to cry on so to speak. If this idea may interest you, contact your local shelter. They should be knowledgeable enough to help you pick a good companion for Oliver so when Piccolo passes it won't be so hard on him. I hope this helps, Mike w/Hanna, Missy, Thumper & Jeffery [Posted in FML 7857]