No one looks happy eating fish. They may look smug — and they should. That’s definitely the healthy choice. But happy? No way. Sneak a peek them throughout the meal, and you’ll catch them longingly looking at everyone’s meat entrée. Really look into their eyes, and you’ll see a profound sadness lurking there. Don’t believe me? Test out my hypothesis for yourself. Next time you’re out to eat and someone orders the fish, ask both the fish-eater and the meat-eater the same question and compare the responses. Question: How’s your entree? Fish-eater: “You know, it’s cooked well. Flaky.” They say…