@jackeric Yeah, he would sit upright. Reminds me, car-based ones: a car drove past me in Northampton once; in the back was Alan Yentob. He was picking his nose.
I've also saw Charles and Di in the back of a car one time, and on another occasion, the Queen and Prince Phillip, though not sure if it counts when they're in a motorcade. None of them were picking their nose.