I don't like that I eat chicken. I feel awful for the chicken. But chickens eat bugs when they can, and don't seem to feel bad about it at all. So show me a chicken that doesn't eat bugs and I will pledge to never eat him. The only way vegetarianism will ever suit me is with some sort of unilateral cross-species pact, with an inspection regime, like the US and Russia did with nukes. Trust, but verify.