..In self defense? For example, if they were threatening the life of you or your loved ones. Personally, I would have no qualms over it. When I lived in the country, we had plenty of wild animals who would attack our pets; you either kill the raccoon or watch your cat die. I always saved my cat(s). I lost no sleep over the raccoon. In my mind, anyone who is evil enough to attack innocent people is no higher than an animal.