For the most part, sanity is the way to go. Sane people know to wait for lights to turn green in traffic. Sane people know that apples are food and sand is not. Most sane people even know better than to dip their french fries in ice cream, although that is not always the case. But we forget that sanity has its downsides too. We know better than to hurl our bodies from towering structures, but that also keeps us from performing these jaw-dropping, eye-popping examples of just what the human body is capable of. The point is, being sane isn't all it's cracked up to be ...