With a Springfield, which has a grip safety - possibly. With a 1911, which has a grip and thumb safety, the chances of not shooting oneself would increase. With a Glock, there is no way that an intelligent person would try it.
"A stitch in time saves nine!" With the 10th, he shot himself and required stitches. No time saved!
It might have worked if he had kept his trigger finger off of the trigger and his body parts away from the muzzle.
Yes, unloaded, always!