I do this all the time. Usually I'm in a rural area, umpiring baseball, kayaking, fishing, etc. and can either see my vehicle or am very confident I won't have an issue. I don't think I'd do it in downtown Atlanta, but I'm not judging. I can't say for certain that I wouldn't.
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fftopic:I'm unsure what an makes an urban assault rifle. I assume you consider an AR-15 in that class, since its commonly mistaken as a "bad" or "useless" gun. I can assure you, there is no better varmint gun in the world and it is more commonly used as such rather than its urban Hollywood portrayal.
I'm not completely current on gun violence statistics, but last time I researched, the most commonly used gun in violent crimes was a .22 pistol. They're cheap, easy to conceal, readily available, and much more deadly. Your argument implies that gun companies produce .22 pistols with the acknowledgment that a certain percentage will be bought exclusively for violent crime and are therefore at least partially to blame. So, following this "logic", a producer of any item that could ever possibly be used for murder or suicide should therefore share in the blame if they acknowledge that their product could and likely will be used illicitly? Steak knife, chainsaw, floss manufacturers...you're now on notice!
I don't buy that.
I blame the person that pulls the trigger for violent shootings.
It's as if you would "share" the blame with the builder of your home for providing doors or windows that burglars could use to enter your house and steal your stuff. I'm sure you'll find a way to make a distinction, but if you leave your car keys in your house and leave the house with the car parked and it gets stolen, would you share the blame with the thief, yourself, and builder, in that order?
I blame the thief that broke into Kyle's truck for theft. I believe in shared blame, but this just isn't one of those situations.