I wish I could find the video as I've seen it, but the most heartwarming story like this I've ever seen is about a senior in high school who had attended every practice, every game, every scrimmage, every meeting since 7th grade.... but couldn't play because he suffered from the disease that causes brittle bones.
With 0:13 left to go in the final game of his senior year, his team was down by 30-some points. His coach told him to go in, accept a hand-off from the QB, take a knee, and an member of the opposing team will touch him on his shoulder to down him. Both teams were in on it, and that was the plan. He did so, but the opposing team never crossed the line of scrimmage.
They just stood there.
He stood up, bewildered. Fearing getting tackled if he tried to run downfield, he hesitated, walked back and forth, when finally he realized the other team was still waving him on and still yelling 'Go! Touchdown! Go!"
He ran 42 yards for his only score.
Finally, the opposing team waved at him, yelling 'GO!'