You know those Windex commercials where talking birds fly into a window because it's too clean and streak-free? That silly mistake is not just limited to our flying friends, as you can tell by these clumsy humans. I've heard of opening a can of whoop-ass, but opening a can of "whoops, glass?"
What do you do when you walk into glass? You get back up, of course. If you're struggling with life (more specifically, your life-struggle-poker-face), take a look at this collection of animals who are just totally and completely happy with their current situation.