Im not trying to get in a debate over this, But the bear spray definitely works on humans. I know this first hand from playing with it on a windy day. And I would much rather a child find the spray versus the other forms of protection out there. But each to their own. My wife has her concealed carry, and did carry a Uzi until California outlawed them, She had to drop down to a 44 :) Ive been looking for a volunteer so I can try out my bear spray and so far there have been no takers, If I can find a volunteer Ill make a video for you folks and put a end to this once and for all :)