That's pretty funny. Even though your real reason for the training turned out to be the bet, your original intent behind the statement “I never exercise. I’m going to train and run five miles.” seemed to be that you wanted to get into shape (unless you were just baiting him for a bet all along). It turned out though that even though you accomplished you goal, it really didn't help you long term as far as health since you said you didn't run again for several years!