The only thing that this proves is that the idiot with the gun does not pay enough attention. You can not tell me you dont notice your gun holster unclipped, and then the gun pulled out while your removing your pistol. Then you put your pad lock on and push the gun back in and snap it? Incompetence. TSA and Desantis have done nothing wrong, the pilot needs to practice caution and better safety, then he won't have a slug in his leg or the airplane.