Paraded down the tarmac after a transatlantic flight, three-year old Prince George was in no mood for high fives, low fives or handshakes of any kind. Unable to negotiate basic contact, Canada's telegenic prime minister, for once, found himself on the wrong side of the photo op. When pint-sized media darlings go rogue, anything can happen. Having dabbled in the dark art of ‘family travel journalism’, I am all too familiar with the complications of using children as a plot dev