To each his own. Any time I have needed to bring a pistol to a gun store (sale, transfer, etc.), I bring it in a case, no ammo in pistol or mags, slide locked back, or a chamber flag inserted. I've never "drawn" a pistol in any circumstance other than training or to put the pistol away for the night (fortunately haven't needed to draw for serious circumstances). I have also never been yelled at, so I must be doing something right. BTW I never said anything about "ventilating" anyone.