@walruslifestyle I think it's a misnomer to talk about "selling" when you don't have a surplus. That is, it's hard for me to see what the word is talking about if it doesn't take place in a genuine market. Sales are things that happen in markets. And when one of two parties must acquire what the other has in order to live, and the other recognizes and exploits this need, that's not a market. It's more like serfdom. I don't know, I might have this all wrong.