You would think letting themselves in and out would be a good thing but really its a nerve racking thing because he just doesnt let himself out her lets EVERYONE out. They work as a team , Karl gets the wooden door open and then Victory goes to work on the screen door latch, shes just the right hight when she jumps on the door, so ya a couple of whacks with her feet and the door is open and out they come lol. I had a tug of war with Karl and the door, i was on the outside and when i left i closed the door and he started to open it so i grab the handle and closed it well he grabbed it again and the tug of war was on, i cant see him and he cant see me, i was laughing because it felt like a human was on the other side hahahahaha pulling as hard as i was. When he is on a mission to open that door he is very quick about it.