It may change his mind about continuing the charge though. And if he's headed at me, his face and chest are going to catch the bullets. I don't ever plan to put any of this into practice, mind you, I'm not an idiot! But, if I had to put myself in that position, give me my Glock before a spray that lasts about 7 seconds and shoots at an arc that you have to account for, all while he is running full bore at me. I've used both, and I promise you I'm much more accurate with a handgun.