Marathons are massively difficult enterprises for the people who participate, feats of incredible endurance that are accompanied by a staggering physical toll.

Sometimes, the people who train and train are simply unable to finish. That happened on Monday at the Boston Marathon, with a runner falling down just shy of the finish line.

Here, in three images, is what happened next:

Sigh, fine: People are wonderful sometimes, I guess.

UPDATE: Wesley Lowery has much more here on the story behind these images.