Funny even not so gun friendly countries like Germany consider it gauche to show up at the range without one to protect your fellow shooters hearing. Common sense looses again, then again it is DC....
Of course this “miscarriage of justice” can be corrected by passing a law by requiring the shooter to shout “BANG” when they discharge the gun. . . . / sarc
A little ridicule appears in order . . . then the court can interpret the law to require a knife-bearing assailant to shout “BANG” each time they stab their victim . . . . / more ridicule and sarcasm