This isn’t necessarily a self-defense incident, however, it is something you may encounter on one of your trips to the range.
You’re at your favorite indoor range getting checked in and finding out what lane you’re going to be using. Someone comes in alone and wants to rent a 9 mm gun and doesn’t have any certain gun in mind to rent. They’re very indifferent about the firearms suggested.
They’re assigned to the lane right next to you.
Witnessing the exchange about the rental gun, what do you do/think?