When you are confronted by an emergency situation requiring the use of deadly force, you don’t have to wait. The standard for deploying deadly force is whether a reasonable person would have done the same thing. Therefore, do not overthink the situation. If you are about to be killed or grievously injured feel free to immediately respond with the appropriate force. See my video below.
http://blog.uslawshield.com/dinner-turns-deadly-part-2-oklahoma/