when i go out i put on my lumberjack shirt and carry a axe, i tell the cops i just got off work.
if any of you hung out in "bad" places like i have you would know you don't need guns or knives, a box cutter works real good (cheap, eazy to get,and it is a"tool") also that canopener with the triangle point on one end, in fact anything can be used as a weapon (base ball bats), the point is you cannot pass enough laws to disarm the criminal, all you can do is allow the citizen to defend themselves.
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cop:: sir , where are you going with the bat?
citizen:: ahh, just going to the park to hit a few balls , sir.
cop:: ok , have a nice day.
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