The following is from the US Government Peace Corps Manual for its volunteers
who work in the Amazon Jungle. It tells what to do in case you are attacked by
an anaconda. Now an anaconda is the largest snake in the world. It is a
relative of the boa constrictor, it grows to thirty-five feet in length and
weighs between three and four hundred pounds at the maximum.
This is what the manual said:
If you are attacked by an anaconda, do not run. The snake is faster than you
Lie flat on the ground. Put your arms tight against your sides, your legs
tight against one another. Tuck your chin in.
The snake will come and begin to nudge and climb over your body. Do not panic.
After the snake has examined you, it will begin to swallow you from the feet
always from the end. Permit the snake to swallow your feet and ankles.
Do not panic.
The snake will now begin to suck your legs into its body. You must lie
perfectly still. This will take a long time.
When the snake has reached your knees slowly and with as little movement as
possible, reach down, take your knife and very gently slide it into the side of
the snake's mouth between the edge of its mouth and your leg, then suddenly rip
upwards, severing the snake's head.
Be sure you have your knife.
Be sure your knife is sharp.