Puccini, the composer of the Opera Madame Butter often sent a cake to his director Toscanini at Christmas. One year, he did so as usual, but he suddenly remembered he had had words with that famous director. He was very for it. He was afraid that Toscanini might return it. So he sent a telegram: "Sorry. Cake sent by mistake. Puccini." Soon he received a reply: "Sorry. Cake eaten by mistake. Toscanini."