Jetta Productions Inc/DigitalVision via Getty Images When things aren't going your way in the market, it can be difficult to stay the course. The longer the market disagrees with your assessment, the more difficult this kind of situation becomes. After all, time is limited in life and the more you spend holding a subpar position, the more you seem to be missing out on. However, in some cases, I believe that extreme patience can be well worth it. A good example where I think this applies involves Dana Incorp ...