Jannb that is heartbreaking. Yes, it's much better than falling or loosing nails. I've already purchased the plastic grid stuff, I headed to Home Depot right after you posted. I wish I could free range but I have a dog and a six year old. On your recommendation I have set up a small free range in the pool cage outside so he does get some out of cage time. Unfortunately it makes the screen climbing worse when he first gets back in his enclosure. I had just moved him back inside because it was getting hot when I first posted. The free range area is new so as he sees he will get out everyday hopefully it will start to calm his screen walking. If not, my next plan is a large bird aviary with wide openings. I'm just looking for something that won't rust.