I don’t have a gun
It’s when you’re so dumb you don’t know your own weapon. Like it’s in your backpack and you forgot it was there.
'I don’t have a gun.' But his backpack had a gun in it. He didn’t notice.
'I don’t have a gun.' He had a pencil and a notebook. No gun in sight.
'I don’t have a gun.' He had a water bottle and a snack. What’s next?