Two Polish guys were taking their first trip to Warsaw by train. In the course of the journey a vendor came down the corridor selling bananas, a fruit which neither Pole had seen before. Each bought one. The first man eagerly peeled his banana and bit into it just as the train entered a tunnel. When the train reemerged into daylight, he looked across to his friend and said: "I wouldn't eat that if I were you. I took one bite and went blind for thirty seconds." Why did the Polish man quit his job as a restroom attendant? He couldn't figure out how to refill the hand dryer.