A client I was working for on contract had an unexpected job come up for me. While the travel distance seemed to be greater than I wanted, the company really needed someone there at that moment. They had had other people not show up and so they really needed to save face in this situation. I finally agreed to go and after an earlier job in the week, I was already stressed.
Arriving at the site, I could not reach any support staff and so I was on my own with inadequate documentation to do the task. I did what I felt was appropriate, but later found out that I had done the wrong thing and had to start all over again. I was furious and ready to walk out the door because the support staff that was unavailable earlier, was now talking to me with an attitude. To make a long story short, I ended up coming back the next day which combined with another unexpected moment to bring in some significant income that day.
