I worked for Fed Ex in the late 80's early 90's...then it was called Federal Express...the founder of FedEx is Fred Smith ...
The conception of FedEx stemmed from Smith’s senior thesis at Yale outlining an idea for overnight air delivery service, for which he received a C. His professor commented, “This concept is interesting and well formed, but in order to earn better than a C, the idea must be feasible.”
Some Professor he was ,,,,can you imagine being reminded of this forever?
Incredible story.