"A Day at the Park" is an excellent philosophical comic by Kostas Kiriakakis, featuring two rather odd-looking creatures discussing the merits of questions and answers. (It applies very well to some discussions on Stack Exchange, notably "We're Rewarding the Question Askers".) The two main characters, the young one with his questions and the old one with his answers, are almost always the focus of the comic, but a few frames pull out to focus on a passerby, a tall figure with hooved feet "walking" a fish on a leash:
Do these extra character(s) signify anything? Is the figure with horns and hooves supposed to be demonic? What does it mean that the fish is floating in mid-air? Is there any meaning to this beyond an extra feature of the world drawn around the Asker and the Answerer?