At three Michelin-starred Osteria Francescana, a sous chef accidentally dropped a lemon tart before serving it. All he saw was failure, but the head chef, Massimo Bottura, saw an opportunity. He used it create a new dessert called ‘Oops I dropped the lemon tart’ – a tart served upside down and smashed, which “pokes fun at our daily striving for perfection and pristine beauty.”