I am desperately trying to remember details about a poem I read a long time ago. In the poem the narrator was reflecting upon a teacher and the impact their negative marking had upon them as a pupil. It was something of a revenge poem if I remember correctly. If anyone can enlighten me about the poem and the poet I would be extremely grateful. I have done some searching but am obviously not putting appropriate search terms in. Also if you can recommend any other poems on the theme of schools/teachers etc suitable for the 14-18 age range I would (once again!) be extremely grateful. Thanks!