The puppies , Tiffany and Lexie, battling it out for supremacy of the house. The U-shaped open ended box in the background was used to teach Tiffany how to walk. Her back legs would come out from under her and make it impossible to get very far. She was placed into the box and a treat would be at the other end. The box was narrow enough so that her feet would not collapse underneath her body. She was always food driven and would make her way through the box. It did not take her long to learn how to stand. She practiced several times a day and became proficient quickly. This could have been a throwback picture. It was taken in 1999. The sisters are probably still fighting over the rainbow bridge.