You told Turnoi not to "venture anywhere near a classroom, especially if it means teaching oral English."

Turnoi has held professorship in English and certainly capable of teaching Oral English but why should he?

Have you come across a professor teaching Oral English?

No, sounds fishy to me. I realise he is a professor but a foreign one. A fishmongers wife would be more suitable to teach oral English than a foreigner who by his own admission makes mistakes when he gets tired.