F42 from fark.com said, "When we go to the petting zoo, my mom feeds and then pokes the cows like she's shopping for meat, and she tells the cow how tasty it looks... The cows seem to enjoy it."
"If we aren't supposed to eat animals, why are they made out of meat?" -Unknown
"I'm not a vegetarian because I like animals, but because I hate plants." -I forget
A well known hypothetical is, "If you could grow meat without ever killing an animal, would you eat it?"
A favorite story of mine has a girl with something akin to universal understanding; not only could she speak with humans (gasp), but also plants, animals, and the environment itself. She was a very compassionate girl and so, for a while wouldn't eat anything (after all, they were all her friends!). But, the plants were all like, "You've gotta eat! Please eat us!" (paraphrasing)
And of course, there are those who are vegetarian for health reasons or religious reasons. Can't really argue with that.
I eat meat because meat tastes good.