On Monday, math GSIs picketed outside of East Hall, where a small group of scabbing workers graded the final exams of hundreds of students whose GSIs are on strike. Grading the work of students one has not taught is violation of professional ethics and an infringement on academic freedom. More importantly, it’s not fair to the undergrads whose work is being assessed by instructors they have never met. Katie, a math PhD, explained, “We really wish we were proctoring and supporting our students this morning. We really wish we were in there grading, taking a really careful look at our students' exams and being able to do the nuanced grading that we generally do. We’re sad that we’re not doing that this morning. We’re out here today to encourage people not to do our work for us. The small groups of graders who are scabbing can’t do as good of a job as we would be able to do all together. There’s power in numbers. Replacing our labor today weakens the power of union labor across the university.