The failure at the Oscars demonstrates a good point to remember: $#!& Happens. My take is that after much analysis, we will find that there were duplicate stacks of envelopes on both sides of the stage, and the wrong envelope was given to the presenters (Warren Beatty and Faye Dunaway). Clearly, Mr. Beatty was confused and hoping someone would notice the problem and correct it. Unfortunately, it took a little longer. 

Donald Rumsfeld was the United States Secretary of Defense from 2001 to 2006 under President Bush. He is known for many things, but will always be remembered for his statement of an old truism, as quoted -