Several years ago, I was on the move trying to close the distance between me and a Tom roost gobbling his brains out. I was standing near a small creek in a flat bottom, right at good seeing light on a cool April morning... just happened to look down and saw that I was straddling a wad of forearm diameter moccasin. Never tried to strike. I am guessing that it was still very sluggish in the cool of the near dawn ... and of course I had not stepped on it. I just hopped back as far as I could and took another path !!! And I never caught up with that darned gobbler.