When encountering a rattlesnake on a trail, you are advised to keep your distance and
allow the snake room to retreat.  People who are bitten while provoking rattlesnakes
have usually underestimated the range and speed with which a coiled snake can
strike.  A rattlesnake can strike roughly two-thirds of its total length and faster than
the human eye can follow.  This can be particularly surprising since the snake can
strike without pulling its body back.  I found a long stick and killed this rattlesnake
by whacking it over the head.