Sinclair shakes his head. "I don't believe that'll be necessary. We weren't exactly best of friends. Besides," he gestures at Jack's still active plasmid, "you've got something of an upper hand here, so to speak."

He could also mention that at the moment, he's actually entirely unarmed, but it's never a good idea to lay all your cards on the table. And once they get back to his office, that won't be an issue anymore. He takes another step back to try and move Jack into following him again.