Similar teacher duping story:

Freshman year of high school I had a very outspoken feminist teacher. She was notorious for giving remarks like "B-, you failed to address how this affected women" on a paper like "Discuss the military strategies of Ghengis Khan".

I had to give a presentation on the Wright Brothers, and felt screwed because it was about two men. I learned both of them were married, and subsequently spent the entire presentation talking about the "untold heroes of modern flight - the Wright Sisters" and how a bunch of the discoveries and contributions to learning how to fly were actually developed by the wives of the Wright Brothers but they took the credit because of misogeny.

I made 100% of it up. I also received an A+.