Those are so funny. In the restaurant business, we deal with all kinds. I used to work in a sports bar, and we had 2 sizes of burgers, 4 ounce and 8 ounce. When I would ask if they would like the 8 ounce for only a dollar more, I got such blank stares--"well, how big is it?" (8 ounces) "is that bigger than the 4 ounce?" (yes, 8 is bigger than 4, in fact it is double!!).
I deal with so many moronic questions it's not even funny.