It's the late innings, the Padres are way ahead, and whoaboyherecomesahomerunball.
As Jason Heyward's homer bounces off the concrete after clearing the fence, keep your eye on the guy in the gray sweatshirt and backwards hat who pops up from his seat and starts rumbling after the ball. By the 15-second mark, you'll see he has no chance at actually getting a souvenir, but that he doesn't really seem to care. He has a chance to go diving, and he takes it.