Yes I could and have killed animals that were suffering when I've encountered them and I don't feel bad about that because it was the right thing to do for the animal. I'm also not against killing things to eat. Would I differentiate between one type of animal and another in terms of feeling bad about killing it? No, everything's life is equally important, which is why I don't kill spiders just because I'm scared of them. so fluffy kitten or snake, it's all the same to me, if they are suffering I'd kill them, but I don't kill unnecessarily.