A CEO of a manufacturing facility is faced with a problem.
His packaging machines have over a 10% failure rate and as a result, his company is shipping empty boxes to their customers at an alarming rate, damaging their reputation as a vendor and threatening their relationships.
They bring in an engineering company at a cost of over 5 million dollars, designs and implements a system with a scale in the production line weighing the cartons as they pass, and if the carton doesn't weigh correctly, completely shuts down the line. A line worker then must then walk over, remove the empty carton, and manually restart the line. The system is implemented and after a few snags, the system is up and running.
A couple of months pass and the CEO checks their error rates and sees the new design system has a 0% failure rate - a statistical impossibility. He consults with department heads to find out the source of the information only to find out in fact, the numbers are correct. So he heads down to the packaging line for investigation. Upon arrival, he sees someone has placed a fan on top of a chair and pointed it at the line - blowing the empty cartons off the line.
He asks who did this, and one of the line workers admitted he had done it because he got tired of walking over removing the empty cartons and restarting the line.