What makes us facepalm?
Disappointment? Shame? A mixture of both? The exact science behind the facepalm remains murky, but we know it happens when the human body can no longer deal with the ineptitude playing out before its very eyes.
The following are a number of epic athlete facepalms. We don't always know why they're applying liberal amounts of palm to their face, but we know that they've reached a point where looking others in the eye was no longer an option.