When Mali Vujacnic came home to find someone had eaten the kitty treats he decides to investigate.
Unfortunately for Denver he couldn't hold back the guilt and was found out rather easily.
Mali's video has gone viral in a very short time, having received over 6.8 million views and counting.
Denver now has his own Facebook page, and you can buy T-shirts in aid of the American Cancer Society and the National Disaster Search Dog Foundation. He is also set to appear on Ellen Degeneres' US chat show.