These products remind me of THE LIBERALS' "advice" to just "VOMIT OR WET YOUR PANTS" instead of packing a gun 
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That is great. I carry a gun, and I carry knives, but I would like one of these as well. You can never have enough personal defense items in my opinion.
Don't pay any attention to "that" guy. I have been seeing all of his posts and he just wants confrontation... he seems to thrive on it. Sad really.