While reading to an elementary school class in Arlington, VA yesterday, President Obama took some time to answer questions about the First Dog, Bo. He said he walks the dog on the White House South Lawn, but "Sometimes I have to scoop up his poop, because I don't want to just leave it in the lawn!...If you guys have a dog, you've got to walk your dog, too - and clean up after him." And even if it's not your dog, clean up after him. Seriously.