I stapled a small piece of carpet on the home made wooden storm door and Cheucie, a twenty pound kitty, used to rattle the door when she wanted in. Once, I opened the door for her but she just sat there, looking up at me and meowing. I realized she was kinda lopsided so I poked my head around the door jam and saw the large pigeon she had pinned under her left front paw. I looked back at her and I swear she was smiling proudly... probably wanted her picture taken with this obviously trophy catch.