We had a rack in my Dad's pickup and he kept a 20ga Single shot S/G, on the farm. His shells were in the glove box. We didn't have A/C, so the windows stayed down all summer, unless rain came. Neighbors all did the same. Not one gun ever got lifted.
Seeing the generation change, who knows if they wouldn't break a window to steal your gun now.
Seeing the generation change, who knows if they wouldn't break a window to steal your gun now.