A book I'm reading mentioned, in passing, that in a nice restaurant, you and your dining companion have to order different dishes, or it's a faux pas. I hadn't been aware of this. I mean, DH and I never order the same thing, anyway, really. And we do share. But what if we both want the same thing? Or what if I'm eating with someone I wouldn't share mouthfuls with?
Is this really an etiquette point?