As a private citizen I have trained to NOT point my gun at people that haven't earned that action. I've yet to attend a class that taught me to miss however, every class I've been to in the past few years has gone to great pains to point out that I am legally and morally responsible for every projectile that leaves the muzzle of my firearm. Given that I don't have a union or agency to pay for even part of my legal fees, I'll role with that advice.
It's also prudent to note that Georgia considers lethal force as anything capable of killing another person. So regardless of whether I use a pistol, rifle, Hand and a Half sword, or a paper clip I will be judged on whether my actions warranted lethal force, not whether I should have missed a shot so as to not look like a trained killer.
Perhaps the advice offered would be to be competent enough with your chose weapon to use it properly, instead of trying to find some potentially litigious method of fooling the system?