A man went to visit a friend and was amazed to find him playing chess with his dog. He watched the game in astonishment for a while. “I can hardly believe my eyes!” he exclaimed. “That’s the smartest dog I’ve ever seen. “
“Nah, he’s not so smart, “the friend replied. “I’ve beaten him three games out of five. “
This joke is included in the Black Book of Jokes. You can order it from here.