well around here we would have to fight the cat for the bottle caps! I watched her the other morning....she came sneaking into my room....quiet and stealthy (her name in Ninja for a reason afterall!) Looked to see if I was watching her then jumped up on the desk grabbed a bottlecap I didn't throw away and jumped back down with it in her mouth. Soon she was happily batting it all over the den. When we moved furniture the other week we found tons of them under the couch. Dh collects them for the codes in them....apparently she found his stash!