@Dicer I only use the dolphin example because people generally feel it's "wrong" to eat them, but when pressed can't give a reason besides them being kind of smart--which isn't exactly consistent because we eat other smarter animals.

People do eat dogs, but the fact it usually requires something like famines or extreme poverty points to a priority. When we have the freedom to, they're among the first things we spare. No well-adjusted person will gut their chihuahua because they just didn't feel like eating out that night.