Wow, I must be the crazy one of the group, but I started around 5 years old or so I think. Something about mandatory naps when I wasn't tired I suppose... I just wouldn't sleep, but I would have to pretend to (my grandma was such a stickler for naps... I hated it then but would KILL for nap time these days). What can I say, I've always been stubborn...

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Wildlife, epic views, a personal epiphany about what really matters, and tasting your own endorphines after a long, hard climb. The reward is loking back at obstacles, that are now behind you, and feeling like anything's possible." -Gary Klein