Im not trying to bash you personally at all. I have the utmost respect for soldiers, and was not at all attempting to denigrate you. I have been hunting as well, and agree that cornered, hurt or scared animals will definitely fight. But there is a big difference between fighting and constriction.

From my own experiences I have seen snakes become spooked and scared of a rodent, both live and frozen. Once scared, they lash out and strike the rodent, attempt to flee, but have never constricted it once they are frightened. I believe the feeding response (strike, constrict, eat) is generated in a much different way than an aggression based or defensive type behavior is. From my view, why spend the intense amount of energy striking, constricting and killing something when the animal wasnt planning on eating it?