When we first got Hanna, we were told that greys love going after cat poops. Having 2 cats (catbox in the basement), we made sure the greys never learn to go down the basement so we got this tall pet gate (from Petsmart) with a small door for the cats. It was a good purchase. It is not bad-looking , no installations required and very functional (keeps dogs in the kitchen, keeps Ringo out of the kitchen--yup, only Ringo, Bastian can jump over it). Ringo is shown here wanting to join the dogs while they devour their beef bones. Uhm, Rings, I don't think you would want to be near the dogs right now.