This happened in Australia, during a water polo game. It was one of the main sports events of the season. There was nothing exciting at the beginning of the game; but suddenly one of the players jumped out of the water and ran to the referee. He said: "One of the forwards of the other team bit me in the leg while I was swimming under the water." At first the referee thought that it was just a joke. But when the player pointed to the blood on his leg, he had to believe that it was serious. He called the forward and asked him why he had done such a strange thing. The forward said, “I didn't bite anybody.” But the referee made him leave the game. They began again, but a few minutes later two players, one from each team, jumped out of the water. They were bitten. There was blood on both players' legs. The game was stopped, and they began to let the water out of the pool. When all the water was let out, everybody saw a young crocodile at the bottom of the pool. Somebody had put the crocodile into the pool, but why?