My mother-in-law likes to tell my children the Tuscan joke about the cat that waited for the mouse to emerge from its hole in the wall. For three days, the cat sat outside the mouse's home, waiting, waiting, waiting. When eventually the cat barked ‘bow wow,' the mouse ran out and the cat caught it. As the cat ate the mouse, the mouse said ‘I didn't know you spoke dog. You could have told me you spoke two languages.'