I have friends who live in a collective (commune) and they are mixed in terms of omnivorous and vegetarian and vegan. They are as self sustaining as possible. Their butcher is vegan but she decided to take on the job because she thought she would be the best at ensuring as non-violent (I forget the word she used - it was better than mine) an ending as possible. I have been there for a few times and, in fact, the animal did not display distress or fear. She is very good at her job.