Boxing is a glorious sport to watch and boxers are incredible, heroic athletes, but it's also, to be honest, a stupid game to play. Even the winners can end up with crippling brain damage. In a lot of ways, hustling is the same. But you learn something special from playing the most difficult games, the games where winning is close to impossible and losing is catastrophic: You learn how to compete as if your life depended on it. That's the lesson I brought with me to the so-called "legitimate" world.