That's a bit silly. Why would a meatatarian eat anything except meat? They would be an omnivore if they did. What you're really saying is that either: a. The

That's a bit silly. Why would a meatatarian eat anything except meat? They would be an omnivore if they did. What you're really saying is that either: a. The meatatarians are actually omnivores, and just mislabeled. b. The meatatarians are _occasionally_ omnivores, out of preference. Bending dietary preferences when there is social pressure ("they served me this food, being morally good to me personally means I should eat it" or "I'm on a diet, but everyone else is eating cake so I should too") is not all that surprising, especially if the reason you are excluding one type of food is because of _preference_. But when you exclude a certain type of food out of health needs (allergic, lactose intolerance, etc) nobody will bat an eye. If a vegetarian refuses to eat meat for their own mental / moral health, I would argue it should be treated the same.