Our four-year-old son speaks English and German, and he has picked up some Cantonese since living in Hong Kong. One day I was getting ready to take him to a rugby game. His mother, not being a rugby fan, planned a quiet afternoon at home. Our son, however, pleaded1. "Come on, Mommy, you must come." "I don't understand the game," she replied. "But it's in English, Mommy!"