My mother actually used to say this to me and my brothers when we asked her to do something while she was in the midst of doing something else...Magic marker, then worked in Photoshop.
At this point in time this was a damn good drawing of one of my hapless algebra teachers. I actually remember doing it in class since paying attention never mattered much for me anyway. Good guy.
Another half-assed attempt at doing SOMETHING "underground- like". Meh. Magic marker on sketchbook paper. (I still like the name, though.) Late 70's...