Dog

One day a Frenchman went to visit his English friend. When he came up to his friend's house, a big dog ran out and began to bark at him. The Frenchman was frightened and stopped. At that moment the Englishman came out and saw his friend. "Don't be afraid!" he said. "Don't you know the proverb 'Barking dogs don't bite'?" 

"Oh,yes" was the quick answer. "I know the proverb, and you know the proverb, but, does the dog know the proverb?"