Spaghetti with small shrimp and sea urchin...one of the restaurant's classic dishes. I asked for bread crumbs on the side. Our wonderful waiter told me that asking for bread crumbs was fine, as pasta with ricci di mare is often served with them. But he said, laughing, "Bread crumbs are great, but you obviously know your Italian food.....you would be shocked at how many tourists ask for grated cheese with their seafood pasta!! (Definite faux pas, except perhaps in Sardinia)