Of course as I stated....yet he KNOWS it will be over in less than 7 days. Even in the arctic shows he had a rifle due his position on the critter food chain.
I can sit under a tree , drink from puddles an live under a debris hut for 7 days if I KNOW my ride out will be there at 0700 local
.
The fear an unknown factors are not present. Thus the missing part one must overcome that proves one ......tough.
I remember from my days in Uncle Sam's Flying Circus Survival School that "There would be a real breakfast Saturday morning at 0700", and I counted the hours until then, divided by the number of food items I had, and told myself "You can eat something every 4.5 hours (or whatever it worked out to)".
If they had told us Thursday "New Plan - no breakfast Saturday - you're going to be here for an indeterminate period" it would have been most distressing.