No, you have not mis-read that.
This article from Wired magazine is about an attempt by some anthropologists to recreate an ‘urban legend’ of an elderly Inuit man in the ’50s who supposedly made a knife so as to survive and disappeared into the wilderness…
Here is a link so you can read it yourself: https://www.wired.com/story/knives-frozen-feces-kinda-crappy/
Yeah, kinda weird. But an interesting read!
L’chaim!
Moshe ben David