When I first took our new pup into the house, I took her around on a leash, as we have three cats. One unfortunate cat got to meet lady when she jumped up onto our bed and found Pippin sleeping under the blankets. Needless to say, pippen didn't take to Lady too well after that. If anything moves under a blanket now she assumes that it's a cat until she proves otherwise, which can make for a fun game.