In the video a white cat is seen playfully exploring an open cardboard box. A grey cat then walks over and after climbing on the side of the box to check the white cat cannot escape, it slams the lid down and sits on it. The white cat can then be seen pushing at the sides of the box trying to escape as the grey cat remains impassively on top. Eventually the grey cat seems to tire of the game and lets the white cat out. Source: The Telegraph (August 30th, 2011)