I've seen nail caps recommended for kitties. Just a quick question, can the kitty still climb trees while wearing them? I have five border collies and from time to time they do chase the cat. I want to buy a new couch, but my cats have really done a number on it and I'm scared the same will happen to the new one. So I need to teach them to not do it. They have scratchers, but for whatever reason the two siamese just prefer upholstery/ carpet. I was thinking of getting them some different scratchers and then putting double sided tape on the couch corners. And possibly putting some caps on the male while rewarding use of the new scratcher.