It's amazing how a single day can change your life. It's certainly happened to me more than once. As a teenager, I was a regular knucklehead. I went through the motions of high school just like everyone else, but I never really applied myself. But at age seventeen, I found out my girlfriend was expecting my first son. When I broke the news to my father, he told me two things: "First of all," he said, "don't rush into a marriage with this girl jus...