Too many times we see it in sports, and it's always made a lesson. Leon Lett of the Dallas Cowboys celebrated getting a touchdown too soon and they knocked the ball out of his hands before he got a touchdown.

Here's another perfect example of counting your chickens before they hatch.  This woman

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Meghan Rutledge was about to win the race, upsetting the woman who won it twice before, when she raised her fist to celebrate, she used her right hand. The right hand is the hand you use to give it gas, it didn't have enough power and took a nose dive and then you see what happened.