Amazing how often urine enters survival stories!
It's supposed to aid chilblains.
If need be, you can drink someone else's, but don't drink your own. It will kill you.
It's not a survival story, but a second cousin was once a young lieutenant in the US Army. While on maneuvers in the winter, some men of his platoon started a fire. Naturally, he gravitated that way for heat.
The company commander came over and chewed him out for violating light discipline.
"Platoon, attention! Present c*cks! Ready, piss! Recover!"
Fire out, problem solved...
Slightly off topic. I hope Jim doesn't get
pissed at me!