I have three domestic indoor cats, and I was looking at the Purrfect Cat Arch, which is a self-groomer for indoor cats. I really like the idea, but in the past when we have bought scratching posts or anything of that nature, they tend to shed everywhere to the point where it's more of a hassle than anything. I'm talking about the posts shedding, not the cats! Has anyone bought this, and did it make a mess like scratching posts? If it stays in tact it would be a great way to help the cats groom themselves.