Four friends, who hadn't seen each other in 30 years, reunited at a party. After several drinks, one of the men had to use the rest room. Those who talked about their kids. The first guy said, "My son is my pride and joy. He started working at a successful company at the bottom of the barrel. He studied Economics and Business Administration and soon began to climb the corporate ladder and now he's the president of the company. He became so rich that he gave his best friend a top of the line Mercedes for his birthday." The second guy said, "Darn, that's terrific! My son is also my pride and joy. He started working for a big airline, then went to flight school to become a pilot. Eventually he became a partner in the company, where he owns the majority of its assets. He's so rich that he gave his best friend a brand new jet for his birthday." The third man said: "Well, that's terrific! My son studied in...