where are your gloves and your helmet?

Sure, go right ahead! The second fandom is a Vertigo comic called Hellblazer, in which a thoroughly disreputable self-taught mage named John Constantine is the star. I'm learning about him as I go, which is why the fic is progressing so slowly, but the combination is an awful lot of fun, and anyway it's kind of neat just to picture someone teaching at Hogwarts who's apparently no more respectable than Mundungus Fletcher...