Can you tape the cords up so there not on the floor where your ratties can get to them? When I had my first rat Beavis, I came home one day to find like 3 computer cords missing! The lil guy had chewed them off and took them to make a nest somewhere xD I was so angry but I knew thats just what rats do...Anways I also got paranoid and I would watch him everywhere he went. I ended up just taping up all the cords to the walls to where he couldnt reach lol. That all I thought of at the time cuz my room was his and he was so used to just leaving his cage whenever he pleased. I didnt want to have to keep him in his cage all day when I wasn't home. I also know that there are all kinds of cord covers and stuff you can buy.