Everyone who has ever set foot in the classroom knows that there are moments like this.
(Click on the image for larger size.
Invisible Girl, Heroine: Chapter Three, Page Ten written and commissioned by Dr. Faustus of EroticMadScience.com and drawn by Lon Ryden is published under a Creative Commons Attribution-NonCommercial-NoDerivs 3.0 Unported License.)
Bet they would be less bored if this guy were teaching the science.
Image found at the tumblr It’s Hard to Love Somebody.