"But Atticus, he's pouring sugar molasses* all over his dinner!", is what went through my mind when the couple asked for olive oil and balsamic vinegar for their bread. I don't get it. How did this start?
Olive oil I can (kind of) see. But not really. Bread acts like a sponge, soaking up way more oil than I really want to eat, unless you're really quick about dabbing the bread in the oil. You might as well drink a shot of olive oil.
Balsamic vinegar I can't see. Especially not the "balsamic" you are likely to encounter at 99% of restaurants. I don't have real balsamic on hand, and indeed have only tasted 100 year old balsamic twice in my life. Even restaurants that keep really great vinegar on hand are unlikely to pour it for a bread spread.
In the scene from"To Kill a Mockingbird" that I reference above Atticus lets Scout know that to comment on how or what people eat is rude, especially when, like Walter the sugar molasses pourer, they don't know any better. My role when I'm on the floor is to be Atticus. Inside though, Scout is hollering.