I haven't seen these two guys yet in this thread, though the thread is so long now I may have missed them:
"The Grounds Crew Guy" - though not allowed at most HS, he's the guy who gets a thrill out of dragging the field or even putting in a last minute infield grass cutting.
"The Seeds Guy" - the guy who enjoy's his sunflower seeds and leaves ample evidence of that in the stands.
I've been guilty of both at one time or another. Love this thread!