My only spray is in the large canisters intended for bear deterrent. I EDC a sidearm but I do think spray is a good idea for the threats that warrant more than fists but less than going to guns. But I don't know much about the products intended for self defense against humans; sounds like I need to do some research.
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“I'd rather have questions that cannot be answered than answers that can't be questioned.” —Richard Feynman