If you think pulling all-nighters during finals week is something only college students do, think again. John Sullivan, who has been teaching at Front Range Community College since 1988, pulls an all-nighter or two every semester.

Yes, more than a dozen years beyond earning his Ph.D. from the National University of Ireland, John is up all night grading papers and preparing for class. That’s commitment to the job, and, some would say, being in solidarity with his students. He is working while they are studying.