Don't over estimate a human being. When put in a stressful situation, I can become very versatile and use things to my advantage. I do not have experience in weaving ropes and such out of plant fiber but I am sure and confident that if I had to, I could. You could have the best PSK ever but if you crack in an intense situation or make a foolish decision, it becomes worhtless, or even worse, USELESS or non-existant. I think the human brain is the best possible PSK ever, some people even carry it with them all the time. :)<br><br>PS: IMO, a PSK doesn't necessarily mean "pocket kit", it means "Personal" kit, my PSK could fill the contents of a backpack if I wanted it too, at least that how I view it.