A group of people staked a globlet of wine on drawing a snake on the ground. The one whoever finished the drawning first would win the globet of wine.Then,one of them came out first and complacently took up the globet,ready to drink.Seeing nobody around him had finished yet,he held the wine in his left hand and said:Oh,there is still time for me to add some feet to the snake.So saying,he used the other hand to do it.But before he could finish the feet,another man completed his snake.He immediately seized the vessel and cried:A snake is born without feet.How can you add feet to it?With these words,he gulped down the wine.