Erm... in army, during the POW training course, almost everyone
could kill a chicken... The only one who took a bit longer was
because he forgot to twist the neck...
The technique:
hold the chicken sitting down, then draw a few straight lines in
front of it. The chicken will fall asleep. Then twist the neck and
pull it hard, and the head will come off. The body will continue to
struggle a bit, so hold it down till it stop
We also learned how to kill a frog. First, use one hand to grab
hold of the legs, so that it cannot jump. Then smash the head hard
on the table a few times to kill it. Then after that turn it over,
and deskin it, starting from the abdomen.
Lastly, we were also shown how to kill an iguana for food, although
we didn't try. Something like hanging it by the neck, then slitting
it to let the blood flow... till it died...