This is a clip from the David Letterman Show and his feature, "Stupid Pet Tricks." What I find so amusing is Letterman's reaction—this dog really tickled him.
Do you suffer from an itchy back, always in a place you can't reach? Well, this pooch in Brazil has it all figured out. If you live near a dirt hill, or have one in your back yard like we do, try it—you might like it.