Do I really have a chart like this up in my room? Well, it certainly wouldn't be the craziest thing I've done! And of the things I do that typically fall under the "crazy" umbrella, I'd say it'd actually be one of my better ideas when it comes to actually accomplishing something!
If I were to have this chart, it'd have to be much more complicated than a simple rotation though. Certain heavier topics might excuse the participant from the upcoming cycle. And, of course, there'd be an attached chart for "repaying favors" and whatnot.
This is if I had such a chart, of course. But, would it be weirder to put this much thought into a real chart, or a theoretical one? You decide.