There was another guy who had a survivor show around the same time and he collected water once by hanging a shoelace on a rock Which leads me to believe Bear Grylls just wanted an excuse to drink his own urine. He didnt have to do it
That shoelace on a rock trick though ...I'll always remember it God I hope I dont find myself in a survivor situation when I'm wearing laceless slip on shoes
Perhaps, but I insist it's also a good excuse to empty your bladder on your kids head when drinking water is sparce.
You should never drink your own pee. It will only dehydrate you worse. No survivor worth his weight in salt drinks his own urine.