Can Category:Jeff the Killer and Category:Jane the Killer be added together if both appear in the same story? I'm asking because Jane is a subcategory of Jeff, even though they are (TECHNICALLY) separate characters. I was thinking that, rather than Jane being a subcategory of Jeff, they could be basically two halves of the same whole category, with the "Jeff-Inspired" category being a subcategory of both (read: cannot be added on a page categorized as either Jeff or Jane).
Also, for stories where both characters appear (specifically stories where Jeff fights Jane), I was thinking of making a category called "Jeff vs. Jane" (which neither "Jeff the Killer" or "Jane the Killer" could be added to). Another category I would like to propose, which "Jeff vs. Jane" would be a subcategory, is "Battles" (or "X vs. X", or something of the like).
Actually, since Jane is a spinoff of Jeff, I feel we should keep it as a subcategory of Jeff the Killer, but still treat it as more or less its "twin category" (*COUGH*JanetheRecolor*COUGH*).
What do you think?