Precisely.

I don't even need the extra credit, so I refuse to do her work for her.


I would hate this assignment too--it benefits the students who are already good at writing papers, i.e., the ones who don't need extra credit. It's the easiest thing in the world to say "write another paper." Extra credit shouldn't be about regurgitation of information yet again, but something out of the ordinary for the course--not tests, not papers, not translations--that allows application of things learned in the course, and any student can do well at. Like I give my myth classes scavenger hunts for mythology-related items around campus, or my medical terminology classes are presented with new diseases or symptoms and asked to name them based on their newfound knowledge of Greek and Latin roots.

But I'm obviously in the minority among academics on this.