Disclaimer: Please excuse the level of excitability below. My mind, it is blown away.
OMG. I understand you guys. I understand why runners run. I understand the high. The number of calories burned is just over the freaking top for only a few freaking minutes of running a day. Who knew this and did not tell me? I can burn more calories running for a few minutes than in an hour fighting it out on the treadmill.
Running, its gonna be my new obsession.
Bank on it.
ETA: Okay I have calmed a bit and maybe, perhaps realized that the "runners high" was nothing more than excitement than "holy crap, I'm doing this"! It still felt good though.