Whether you are looking for a job or being considered for a new responsibility, let me twist the familiar here and suggest that failure - yes, failure - could actually be your ally.
I firmly believe that we can learn a lot from our failures and setbacks - IF we pay attention. In fact, I recently spoke on this very topic at the Club Management Association of America's World Congress in Nashville.
If you are a road warrior, things like this have happened to you. I placed a $20 bill on top of the front desk at a major brand hotel, and asked the front desk agent if she would please break it up for me, for tips and such.