It's the ultimate variable in sports. It's the frustration of every fan when one man makes a blind call. It's simple, however: Umpires are the last true holders of sports destiny.
The NBA and NFL can pause everything and revert to replays. Baseball can do the same, but only in very specific instances. Even though home-runs can now be replayed, it's only a recent development. Umpires can make a pitchers life hell on every single pitch. They can aggregate an entire city on what they consider to be a strike.
All in all, Umpires may have the hardest job in my humble opinion. That doesn't mean that they don't blow it twice as much as any other sport.
Let us take a fun look at the 5 worst calls in baseball history. For sake of this list, they have to have video proof. Little League, as you will see, is certainly not barred from the terrible umpire association.