As one of the world's most in-demand models, it's not a shock to see Cara Delevingne splashed across newspapers. Recent headlines about the 22-year-old fashion star didn't have anything to do with photo campaigns or glamorous parties, however, but a particularly awkward interview on an American TV show.Following the encounter, Delevingne tweeted 'Some people just don't understand sarcasm', while John Green, the author of Paper Towns (Delevingne stars in the upcoming big-screen adaptation), leapt...
