A thousand things ran through his head at that moment, and he sat back in the chair and let out a breath. There were so many different things he'd expected her to call him there about, but becoming a professor at the school he'd graduated from only a few years prior wasn't one of them. Leveling his gaze with the woman, he nodded slowly.
"It's a shame that the position is even open, but I'll do what I can to fill the shoes of the former professor." Awfully big shoes to fill, Charlie, he thought to himself before speaking again. "I'm not sure if I'm really the right person for the job, but I'll do what I can." Only then did Charlie smile, but he wasn't sure if it looked convincing -- nor was he sure about anything going on, other than that things would be getting rather interesting in short order.