Originally posted by John Lambert:
Or admitting he tricked the professor into believing he knew him.
No, that would involve implying illegal surveilance or something else odd. The key to that was really knowing the personality of the professor, and why he knows that and the professor does not know him is hard to explain. Not necessarily, because it's been at least 5-7 years since he graduated from college and the professor has how many students in each of his classes each semester. It's possible that the Professor, especially one as absent minded as this one, had forgotten about him altogether.