A guy goes to the open-air swimming pool with his new girlfriend. To impress her, he goes to the diving tower and does a perfect double somersault off the 10-metre tower. He comes out of the water and she asks him: "Wow, that was impressive! Where did you learn that?" "Well," he says, "I was national champion in high diving when I was 15." She replies: "Well, watch me", goes into the water and swims 10 superfast laps in perfect freestyle. She comes out and he says: "Impressive! Were you also a national champion in your youth?" She says: "No, I used to be a hooker in Venice!"