Professor Utterback just gave an absolutely excellent lecture on lightbulbs while wearing an apron with an image of a lightbulb on it given to him by his daughter.
He had an assortment of antique lightbulbs in class, and demonstrated the health of a few of them by putting them in a lamp his father had built in high school shop class. Utterback was very animated and obviously enjoyed the topic very much.
It was both interesting and inspirational. I can see why this class comes so highly recommended.