Fiancee and I were hiking into and camping at a state park. We got a little turned around and low on water, so I was a bit out of it and tired. I saw an interesting looking log across the trail and stepped over the smaller end of it. It was around 9:30am, so things were a little cold. I stopped and turned to wait for my fiancee and right as she was about to step on the log I realized it was an enormous 6-ish foot long rattlesnake. I grabbed her arm right before she put her foot down on the bastard and yanked her as hard as I could and backed up a step or two. Somehow the snake hadn't noticed me yet, but it noticed me wrenching my fiancee away from it and it went into full coil-up-and-rattle mode. Had that thing bitten me I would have been in a bad place because I was already dehydrated. If it had bitten my wife, both of us would have been in a bad place because we were closer to our destination with fresh water than to our car.