A friend of my Career Navy father, taught me the knot the Japanese used on him as a POW.
And the knot is?
I believe it is called a Constrictor knot.
I have had lots ‘escape artists’ attempt it.
With hands behind back, none have escaped!
In front they can chew their way out, one had a lighter in his pocket, let him out before he set the place on fire.
One individual became highly enraged!
Another fell down and could not get back on his feet!
Most quickly concede.