10 Things the First Dog Will Teach the Second DogAfter four years in the White House, Bo Obama has much wisdom to bestow upon his new little sister, Sunny

1. THE WHITE HOUSE IS YOUR TENNIS COURT

A game of fetch can sometimes be hard to come by at 1600 Pennsylvania Avenue. "Bo, stop trying to make fetch happen," quipped the official Twitter of the White House on Aug. 13, with a pic of a lonely Bo holding a tennis ball in his mouth. But now that Sunny and Bo have each other, humans are no longer necessary!