Why leave the gun if he still had work to do?

Then he got away through the window and left his gun behind him.

I didn't like leaving my gun behind, for any reason.

I left the gun where it was and joined him.

You 'told him that he'd better leave the gun with us.

But he left the gun, so as to fool us.

"Just leave the gun there and walk very slowly over to me."

It said that those who return should leave their guns behind.

The man walked to the wall and left his gun lying on the table.