Recently in class, I was exploring the possibility that a good could be both normal and inferior. I asked, "What's something that poor people don't buy because it's too expensive, but rich people don't buy because they can afford better?"
A student answered, with no hesitation, "Two-ply."
I said, "Uh, I was thinking more like 'grocery-store steak.'"
But seriously, do rich people have some sort of fancy toilet paper that I don't know about? Or was he maybe thinking rich people use a bidet? I want to find out so much more about how this student imagines rich people are pooping.