We begin with “Popular Teens” from the early 50s, one of the more incompetent comics ever fed to a printing press. This panel tells it all:

In the background, the Blue Man Group is practicing their “Salute to the Air Force” routine; to the left, a red-haired Ed Grimley dork is picking his nose while his mind goes click-click-click saving up this image for later; in the foreground, an instructor  - who has a form of chronic lycanthropy that starts at the wrists and ankles and works its way in – is attempting to show “Miss Gay” how to stand straight up by inflicting irreversible spinal damage. God, how he hates women. And what’s that in the lower right-hand corner? The shadow cast by a skylight, perhaps, but it’s not as though the drawing would have been strangely  incomplete without it.