When a big mistake wreaks havoc today, keep reminding yourself that you aren't at fault. As a matter of fact, figuring out who the bad guy really is will bear little fruit today. When it comes to playing the blame game, just forget it, and tell everyone else to forget it too. Everyone's energy would be much better used trying to figure out a solution to the mess. Why punish someone for something that was probably an accident anyway? Only bad feelings will result.