Muscle cramps. They're a pain. Literally.
Tae Bo founder Billy Blanks worked out with the Denver Nuggets back in September and the video was just released.
There are some things that happen in this world that you just can't make up off the top of your head and this happens to be one of them.
I honestly don't think I've ever come across a video game that has the replay value Mario Kart does. (I'm tempted to call it the best game of all-time). Even though my N64 is stashed away in some god forsaken loft, I still give the game some burn thanks to the amazing-ness of emulators.