He glanced at the clock, then at his watch. Christ, stop looking at your damn watch! Think of Camilla, think of her starting her lesson, think of those aunts you didn’t spend the weekend with, think of Alwyn not looking in your bag. Think of anything but the time. Eighteen minutes to wait. “Peter, if you have the smallest reservation, you really mustn’t go ahead with it. Nothing is as important as that.” Great, so how do you spot a reservation when thirty teenage butterflies are mating in your stomach and the sweat is like a secret rain inside your shirt? Never, he swore, never had he had it this bad.

— John le Carré, Tinker, Tailor, Soldier, Spy