I was just doing a CME activity and the lecturer had the most unintentionally hilarious slides that I had ever seen. He had clearly drawn on some of the slides, but it all just looked like freehand scribbles. Basically, it look like something my preschooler would have done, except maybe not quite as good.
Here is a sample of a slide, just so you don't think I am exaggerating:
What do those scribbles signify, exactly?