Obama's Palin Joke: 'What's the Difference Between a Hockey Mom and a Pit Bull?' By CNSNews.com Staff April 29, 2012 (CNSNews.com) - At the White House Correspondents Dinner on Saturday Night, President Barack Obama made a joke at the expense of former Alaska Gov. Sarah Palin. The joke alluded to a story Obama told in his memoir, Dreams of My Father, about having eaten dog meat as boy while he was living in Indonesia. "Even Sarah Palin is getting back into the game, guest hosting on The Today Show--which reminds me of an old saying: What's the difference between a...