Actually listing "Professor" as your occupation might accord you additional 'honor'. In many Asian countries, a teacher or professor is a position of great honor. When I travel into China/Taiwan, I list Teacher as my occupation. This is a large part of the reason I go into these countries. I have never been hassled, and in fact on a few occasions, have been given assistance with the customs process so that I could be more quickly on my way.

Just my experience.....