Did the waiter in Rome sneer when you asked for butter for the bread or for a cappuccino after dinner? Did your Venetian grandmother slap your hand when you reached for the Parmesan cheese to sprinkle on her spaghetti alle vongole? Did the Florentine guest in your home turn pale when offered leftover pizza for breakfast? Did the fruit and vegetable vendor at the Mercato Centrale yell at you when you checked out the ripeness of his peaches or scooped...