Write about the worst teacher you've ever had. Make sure you identify the teacher (you don't have to use his or her real name), the class (English, Math, etc.), the grade level/your age when you were under the instruction of this teacher. Provide as many concrete details as possible about this person: what does s/he look like, what did s/he say, and how did s/he act? These details should be used to paint a specific picture of this person and to convey your mood toward him or her.
For the purposes of this blog post, write a scene about a specific event that showcases why you feel the way you do about this teacher. Include scene description, dialog, and action. If you decide to use this prompt and develop it into a rough draft, you can include more than one event, more than one scene (the way Sedaris does in "Me Talk Pretty One Day").