What is the most bizzare opinion you have ever heard from a teacher or professor

Not my story but from my boyfriend. In English class they were supposed to write a review about a movie. He wrote a negative one about The Last Airbender from M. Night Shyamalan. First she argued that "iceberg" is not an english word (this took place in Germany) and that he should instead use "icy mountain" they had to look it up in a dictionary to convince her otherwise and then she took points away because "why would you write a review about something and not recommend it".