I was thinking perhaps the poor sherpa tried to recover the coins: money can make people behave illogically, he knew where the coins were buried, he was some wa

I was thinking perhaps the poor sherpa tried to recover the coins: money can make people behave illogically, he knew where the coins were buried, he was some way up there, so it might seem less risky to turn back and descend for the last time compared to descending and then at a later date returning, especially if the coins might be gone already (publicity stunt => other teams and sherpas)