A proprietary trader named "Dom" slumped into my office recently, appearing very disheveled and tired. He sat down on my black leather couch and recounted the horrific day that he just incurred where he wiped out his entire previous week's returns. Dom typically swung for the fences on most of his trades. He had a great deal of confidence in his strategies and the decisions that he made. He was happier last week when he was up $50,000 and he looked more rested and had a very obvious smile on his face. He recounted that earlier that day, he stayed focused on his trading discipline and strategies that had worked just one week before. However, on this day, he was wrong on almost every trade. He felt like he could not stop the bleeding. An awful morning of trading was made even more unbearable by an even worse afternoon. On this day, Dom did not take out time for lunch because he felt obsessed with making a comeback. His situation made me think of a recent Monday Night Football game between the Dallas Cowboys and the Buffalo Bills. The Cowboys should have been blown out after turning over the ball six times, but managed to rally and win with a game-ending field goal. Most interesting to me was how Cowboys quarterback Tony Romo handled the game. By halftime, Romo -- one of the top quarterbacks in the league this year -- had been intercepted four times by the Bills.