Dom Pérignon... The very name is evocative, making ears prick up and eyes sparkle. The taste buds tingle in anticipation as the hand reaches towards a flute of pale gold effervescing with delicate bubbles. The dream is very real; you are on the terrace of the Colette restaurant and, to accompany your tasting of Dom Pérignon, we're going to tell you a story. His story.