A group of aeronautical engineering professors were invited to fly for free on a new aircraft that was just being introduced. As the door was closing and the plane was about to take off, a voice over the intercom said, “Thank you for your confidence in taking the inaugural flight on this new aircraft. It was designed and built by all of your students over this past year. All the professors began to unbuckle their seatbelts and make their way to the exit door of the plane, with the exception of o