There was an island where they were only 70 total people so everybody knew each other. In that island lived a blind man. It was his ability that if he touches any meat, he can recognize the meat which meat is it. One day he went to the butcher's shop. Over there, he was touching a hanging meat and saying, "It's goat's meat." The butcher was clever. He picked up his shirt and put blind's hand on his stomach asked which meat is it? The blind said, "Oh! So you also sell the donkey's meat to???"