I've never been at a table where someone was eating something that repulsed me, but I imagine I'd have a hard time with it if someone were eating an endangered species purely for no other reason than the "novelty" of eating it. I don't know what I would do. Depending on my mood I would either pretend it wasn't happening, or I'd engage them and tell them that they were a smurfing idiot.

Shark fin soup is also incredibly bothersome to me, as are other unnecessary cruel forms of preparing a meal (outside the norm of like, you know, slaughtering the animal for food).