Overheard a moment ago in the next room, from the kitchen, as I washed dishes:
Little Brother (Age 6): "What if somebody who's not John McCain makes a commercial and says 'I'm John McCain and I approve this message'?"
Big Brother (Age 12): "You would go to jail."
Little Brother: "But why?"
Big Brother [authoratatively]: "Because. You're not allowed to go around lying about being John McCain."