there was a chick that tosh interviewed who does high altitude shit like this who said she cant do 1 pullup. at all.
couldnt save herself if she slipped. and she didnt even seem concerned about that, nor did her boyfriend who films her.
I see people doing all kinds of extremely stupid shit to get internet famous, or to get that "great selfie" while standing at the edge of a cliff... 9 times out of 10, it doesn't work out in their favor.