most of us take 5+ years to complete our "four year" undergraduate programs.
Well, more like I always thought that a letter was for something more than just participating; rather participating with a certain degree of outstanditude and could be earned in more than one sport.  Someone who excelled in baseball, football and basketball in junior and senior years could easily be a six letter man.
ron's baby brother, ernest obvious
PS
misunderstanding your line of thinking (gee, that'd be a big surprise)
Hey! Sometimes *I don't understand me.