Sadly, I know a couple like that. I offered them a cup of coffee one day, and it went like this:
Them: "Is it real coffee, or decaf? We only drink real coffee."
Me: "It's real coffee."
Them: "Did you grind the beans here at home or at the store?"
Me: "Here at home, just before I made the coffee."
Them: "Is it fair trade coffee? We don't drink coffee that isn't fair trade."
Me: "Yes, it's fair trade."
Them: "Is it shade grown? We don't like coffee that isn't shade grown."
Me, getting the package of coffee beans out of the cabinet: "Yes, it's shade grown."
Them: "No, thanks, we brought a thermos of coffee from home."