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Yet, I know white people who have been threatened in that manner. A good friend of mine was cuffed, thrown face first into the hood of his car and had a gun put to the back of his head when he smarted off to a cop who was giving him a field sobriety test. My friend had been drinking, but he passed the test easily and it obviously P'Oed off the cop, which my friend was a bit too amused by. My friend ended up getting off because there was no denying the gash on his nose and busted up mouth.
Your drunken friend mouthed off to a cop and survived. Again, "your experience" gives credence to a privilege that isn't afforded to everyone.