"Well, they start with O and end with -nions," she replied, "And they are a thing that people cultivate and sometimes that make you cry."
"Okay, I guess that's technically accurate, but why are you telling me this?" I replied.
"I thought we were at a things-that-are-like-onions convention," she said, "and as a farmer, I thought I'd give my expert opinion."
Then another farmer walked up. "Opinions are like onions," she said, "Everyone has one and they all stink."
"Um, but that's not even technically accurate."
Then she handed each of us a rotting onion and proceeded around the convention distributing more of them.
Also it turns out we really were at a things-that-are-like-onions convention. I'm hoping they have gimlets at the cocktail bar.