I think if we all had to witness how animals are slaughtered (even in the normal way) there would be many more vegetarians. I am not a vegetarian but I do strive to eat less and less meat. My compassion for animals and my meat eating are something I feel very conflicted about. That said, I am very sorry that you had to witness and hear what you did. No one should have to come upon such an event unexpectingly. I think you have every right to complain to the powers that be.