Chinese history professor Michael Puett does it again. Just last month, Puett gave his Ethical Reasoning 18: "Classical Chinese Ethical and Political Theory" class a break from lectures, assignments, and section during the week his students had a paper due.

In an email to his class, Puett apologized for ending his lecture five minutes after the hour on Monday, Nov. 5. "Only after I finished the lecture did I realize that the clock in Sanders was five minutes slow," he wrote. "...I'm so sorry!  I will be sure to check the accuracy of the clock before each lecture from now on!"

Puett is making sure his students can take full advantage of Harvard time. Five minutes may seem trivial, but the man is an ethics professor after all.