Basic Rules For Cats Who Run A House DOORS: Do not allow closed doors in any room. To get a door opened, stand on hind legs and hammer it with forepaws. Once door is opened, it is not necessary to use it. After you have ordered an "outside" door opened, stand halfway in and out and think about several things. This is particularly important during very cold weather, rain, snow, or mosquito season. Swinging doors are to be avoided at all costs. GUESTS: Quickly determine which guest hates cats the most. Sit on that lap. For sitting on laps...