... as another example of the "me first" attitude of the professional athlete, the origins and motives of the end zone celebration actually come from a much more interesting place. 

Dr. Harry Edwards, a professor of Sociology at Cal-Berkely who moonlights as a sports psychologist and consultant to the San Francisco 49ers, has studied the way athletes express themselves in professional sports. 

In context, the touchdown celebration is a freedom of expression, a moment when the militaristic discipline of of football is shed for the pure joy of personal achievement. 

And then, of course, there's the Ickey Shuffle. 

From 1965 to the present day, check out the most innovative touch...

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