First off, when I said "fighting" I mean as in play wrestling. In over 14 years of owning ferrets I haven't had any "fights" just the I grab you and crocodile you, you grab me, etc. Adding new ferrets in my home has always been like "Hey there's a new dude at the frat house - tap a keg!" Secondly for walls I've found that using a fleece throw around the sides and back of the cage not only blocks drafts but keeps the poop from splattering walls. And yeah - it can splatter the blanket if it happens but of course they're washable. I secure the blanket along the top edges of the cage with binder clips. And LOL at Ardith's comment "ferret poop is stronger than Gorilla Glue, so if you have anything around that needs a solid, permanent repair, Ferret Poop is what you want to use." Also like how you capitalized Ferret Poop like it was a brand name LOL Laura and the Ferretocious Four [Posted in FML 7085]