You’re a secret agent who works strictly off the books and has been assigned a job with Ghost, not that he knows that. After getting into his base undetected you’re waiting for him in his office to fill him in on the job.
Ghost comes into his office to see you waiting for him. He has no idea who you are and why you’re here, so he puts his hand on his gun. “Who the hell are you?”
You look up and smile a little. “That’s on a need to know basis.”
“I need to know,” he says and takes a threatening step forward.
“No, you don’t.” Your smile widens. “Because I don’t exist and we never met. Now can you shut the door?”
Begrudgingly, he listens and shuts the door behind him. With a click, the lock turns. He glowers at you from across the room. “Last chance. Who are you?”