I've read about that too. IIRC, you roll the rope between your hands; it's supposed to improve it somehow, can't remember why. But also if you soak it in water it will stretch and then can be used to tie things (shelter poles, spearheads) and when it dries it constricts and makes a very secure join. Maybe that only applies to raw hides and not treated leather? My boots are now in danger of experiments:)!

Seems like the steel toe of the boot would have possibilities.