I hope you like drinking your own piss, because reasons for doing so are the only things Bear Grylls has ever invented.
Pick an answer (choose wisely):
A- Dood, Bear Grylls is a warrior, a hero. He is badass, he is a f*cking survivor. If you were in his place you wouldn't last a day.
B-Why a rational and clever INTP - which is me - would want to feed himself with body waste?
No offense to our magnificent poster. & I'm also sorry for stealing humor from internet memes.
Ok, nuff derailing.
A man builds. A parasite asks 'Where is my share?'
A man creates. A parasite says, 'What will the neighbors think?'
A man invents. A parasite says, 'Watch out, or you might tread on the toes of God... '