"For scientific leadership, Scott; for swift and efficient travel, Amundsen; but when you are in a hopeless situation, when there seems to be no way out, get on your knees and pray for Shackleton."
As someone who regularly sells Commercial Brews on the player market, I never turn up oats in combat. And, why you use oats and not rice to make wine is one of those CE Eternal Mysteries, like where did Rexx come from?
But... perhaps a new oat-based settlement structure?
Rexx's Observed Loving Insights, OATS
ROLIn OATS
This structure allows the grotty rabble of the populace to indulge in oatmeal baths, carefully styled after the baths used by Captain Rexx Shredd to keep his skin looking decades younger than his actual age. By indulging in these baths, everyone looks younger and prettier, and far less revolting in the eyes of cultured people. Further, the ROLIn OATS structure is a good source of tax revenue on ugly people, which is most of any settlements population.
Effects:
Morale: +1%
Tax income: +1%
Chance that Captain Rexx visits your settlement: +0.5%