Does it have to be yellow piss or will watered down clear piss work?
My piss was so yellow and bad I had to water it down with tonic water. I doubt many people on this forum have clear piss. I've heard a report of someone getting sick drinking their piss when it was cloudy. But they say everyones piss is like a customized medicine for themselves.
I also found this which was interesting. Don't know what to make of it, I don't speak greek.
“As for the ouroboros, the common alchemical image of the serpent suposedly eating its own tail as emblematic of constant death and regeneration: the term, which is usually interpreted as ‘tail-eater,’ is more easily translated as ‘urine-eater.’ The word for ‘urine’ in Greek is ouron, whereas the ‘tail’ is oura, leaving the connecting omicron in our-o-boros without explanation; supposedly it derives from a version of oura as orros, but that leaves unexplained the initial ou – and the lack of a double rr.”
— Carl Ruck, page 51, from The Hidden World, Carolina Academic Press, 2007