An interesting take on the prompt this week, Musa. Dr Fred (or is he Dr. Ken?) certainly does get a taste of his own medicine in this story!
An area that you could focus on is foreshadowing. In this story, you do not show us any evidence, in the development of the story, of Dr Fred's previous behaviour towards his students or lack of respect for other people, so it comes as a complete surprise when the interviewer's dumps this backstory knowledge on us as his rationale for keeping Dr Fred waiting all day. Readers enjoy the aha moment when the story comes together and makes sense because of what they have already learned about a character and his/her development. They don't want to feel shortchanged. It is therefore really important how much information is revealed to your readers, when and how.
I think you would enjoy reading and gain a fair bit from this article on how to reveal information in fiction:
Thank very much, would look into it