OK, I can't take credit for this, it was sent to me by my friend David in California with no author information available. I won't vouch for it's accuracy, but it was really interesting. Thanks David!
Back in the 1500s:
They used to use urine to tan animal skins, so families used to all pee in a pot & then once a day it was taken & sold to the tannery..... ..if you had to do this to survive you were "Piss Poor"
But worse than that were the really poor folk who couldnt even afford t(...)