How do you discipline a cat, is it even possible? Our cat is about 1.5 years old and she's now taken to ripping the wallpaper. She got an awful habit of ruining the woollen carpet She goes mental if you don't pick her poo up after she's visited her litter tray. If she doesn't get her way she sulks and scowls. She has always gotten her way since she was a kitten and she rules over us. If you don't let her in to the room, she yowls loudly and shreds the carpet and scratches the door. Is it too late to teach her she can't have her own way when she demands milk, tuna, food or wanting us to let her in and out. Why oh why did I spoil her so much