Imagine a very large mostly volunteer-run event that only runs once a year or so and where some fraction of the volunteers are running the event for the first time.

At the end of the day all the important equipment gets packed up, shipped somewhere, and unpacked.

But sometimes -- rarely, but sometimes -- some really important piece of equipment gets left behind at the event site or unpacked incorrectly at its new location.

I just described marathons, carnivals, and... voting.