I'm looking for good sources that discuss whether there are religious groups that
take the view that deadly force is always bad, even in self-defense or defense of others, but nondeadly force (including pepper spray, stun guns, and other devices that are extremely unlikely to kill) is permissible, or
take the view that given the choice between nondeadly force and deadly force, one should always use nondeadly force, unless the nondeadly force is very likely to fail (e.g., all one has for nondeadly force is fists vs. an attacker's knife).
My favorite line is: "I realize that stun guns and pepper spray may not have gotten a great deal of specific attention from theologians..."
No deep thoughts on the topic, but it's an interesting discussion for a pacifist/religious/swordfighter like me. (Multi-class Cleric/Fighter; yay!)