I'm specifically concerned about the title "professor." Sometimes it feels like it should be capitalized, but other times not. I'm sorry that I'm not familiar enough with the rules to completely understand the distinction. For example "I'd like to introduce Professor Smith of the biology department," said Jane. "I wish professor Smith would shut up," Jim snapped. The question comes up for me even in narration. For example Frantically professor Smith shuffled through his papers looking for the note. Thanks for any advice you can offer!