My cats eat toilet paper, too. And Kleenex. They must lack something, nutritionally, to do that.

They also eat fringe, string, ribbon...anything that looks like that. Don't know what THAT's about!

I used to live in a "guesthouse" where my landlady had a big dog. When the squirrels would run across the phone wires, way up above the garage area, and they'd poop while they were up there, it would fall into the garage area. It would dry overnight. I saw that dog, many times, eat that. Crunching away like it was a doggie treat. Euuuuuuuuuuu...

They'll eat anything.