His Head And His Gun Were Both Emmpty

Ya know, showing an unloaded gun to someone in an attempt to rob them might work in some places, but I don't think it'll work too well at a gun shop. It didn't in this case, since the owner had a loaded gun of his own.

Not only that, but the robber, who also set $40 on the counter in an additional attempt to distract the gun shop owner, left that behind too.

Yup, dumb.