I have to be very careful what is laying around in my house. Most of my kitties seem to like chewing on things they shouldn't. Bear has an addiction to Q-tips and cardboard he will even tip over trash cans looking for them, Pooky goes for anything plastic (straws, bags, plastic silverwear etc.), Dusty goes only for paper clips and rubber bands, Cami will go for anything smelling remotely like human food, Jack is my good boy and doesn't seem to be addicted to anything weird. As you can imagine I have to keep stuff put away and closed up, I even had to buy all different trash cans with lids, but even at that, the foot peddle can in the bathroom, Bear has figured out how to open!! He weighs 16-17 lbs so he just sits on the peddle and POOF the can is open, so now we have to throw all Q-tips in a different can that he hasn't figured out how to open.....yet.