It's fair to say you've never heard of Dean Potter, we're guessing. But what you're about to watch the extreme outdoorsman do will have your heart trying to find a way out of your body.

Potter is known for BASE jumping and a number of other mountain and elevation-related exploits -- the kind that are extremely risky, release comically insane amounts of adrenaline and make you all the more thankful for a desk chair in a building with four walls. After all, you wouldn't rather be highlining (the modern form of tightrope walking) over a 3,000 foot gorge in Yosemite, would you? Potter most certainly would.

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That video is all kinds of "Nope." Potter takes two steps over the gorge, and our fingers are already out, testing the wind for the slightest shift in direction. No way, no how, would you ever find any of us even standing on the ledge looking over, let alone walking out. We applaud you if you were even able to watch the whole video without hitting pause.

Don't believe it's real? It's not the first time Potter has tempted fate. His exploits have been chronicled by many, including the New York Times.

Is it legal? And as far as we can tell, this is not forbidden in Yosemite National Park. The rules steer visitors away from defacing any natural elements of the beautiful park. But Potter has always insisted he never does that. If you're looking to us for an endorsement, we say: No. Not at all. Ever.

You can breathe again, by the way.

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Critics of soccer in America are constantly looking for ways to make the game more exciting. Not enough happens, they say. There aren't enough goals and the game plods along too slowly.

Well, Scandinavians are quite fond of soccer, and generally have no qualms with the sport. But that hasn't stopped a Norwegian television show from adding a little spark. Former professional players (and most importantly, the referee) were outfitted with shock collars built to train dogs. You can imagine how ridiculous this gets.

How Norwegians beat us to this, we'll never know. This is the kind of innovation that would have kept the XFL alive for at least two more seasons. The inspiration for the idea totally makes sense, too. As a fan, if you haven't ever wanted to shock the opposing team, well, you're probably doing it wrong.

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Auto racing of any kind is quite often criticized for the monotony of the oval, the length of the race and the sheer repetitiveness of it all. But you can't say it doesn't build suspense, often tumbling toward a crucial moment that will be decided in a nanosecond, but took an hour to develop.

The cars screech, rattle, rumble and hum into corners, and every now and then – each other. But it's the finite window at deadly speeds that truly makes the spectator gasp in both terror and excitement, and it's even more dramatic from a POV camera on the car (Mazda MX5 in this case). Enter the clip below. For about 35 seconds, it's pure racing footage. Impressive, arresting, but not terribly captivating. And then out of nowhere, insanity.

You thought it was impressive that one time you were at the go kart track and squeezed between your buddy and a railing at world-blurring 25 mph. But you're also not borderline insane enough to think you've got what it takes to squeeze between two cars in a Lamborghini. There's nothing wrong with that. Self preservation is a fine quality to hold on to, even if it won't earn you YouTube fame.

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Cheerleaders take a lot of heat for a lot of reasons, most of them coming from an envious place. Well, this video isn't going to make you envy cheerleaders any less.

An LSU cheerleader wore a GoPro POV camera during the Tigers' Nov. 25 home win against Arkansas. A flyer on the team, she gets some major air, providing some killer perspective in the process. Not only is the view from the stadium turf mesmerizing -- there were 93,108 purple and gold fans in attendance who witnessed a 41-17 Tigers win -- but the moment right before the team runs out on the field is the perfect crescendo to the pre-game build-up of hype and atmosphere in the SEC.

As tough as it is to admit, that video makes cheerleading look pretty awesome. Well, except for the part where you're watching Les Miles back toward you with his rear end. The rest of it is pretty cool, though.

Can't wait 'til we see the video perspective of Mike the Tiger.

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