Here's another one from the "Terror Caused By Rogue Baseball" department. This one's notable not because it's busting up a dude's face, but because of the sheer range of human expression on show. Look at all those faces. Terror, shock, disgust, and a kind of excitement - it's all there. There's even the Kris Kristofferson looking on from the top left of the photo, who just wants to get on with the game.
This is a perfect example of humankind at its most candid. As the ball flies at them, not a person in the crowd is thinking about how they look. They can't control their faces in any way, shape, or form. And what we have as a result is a kind of mass "orgasm face" - you know, the kind of face you make when you think that nobody's watching.