“One morning a mosquito saw an iguana drinking at a waterhole. The mosquito said, ‘Iguana, you will never believe what I saw yesterday.’ ‘Try me,’ said the iguana. The mosquito said, ‘I saw a farmer digging yams that were almost as big as I am.’ ‘What’s a mosquito compared to a yam?’ snapped the iguana grumpily. ‘I would rather be deaf than listen to such nonsense!’ ”