i think you are totally right on the slime mold thing, at least that is what i thought it was....it comes and goes and leaves a few super tiny fruiting bodies behind....and it does grow faster than i think a true fungus could grow....this does however ruin my clever title...after looking back to my margulis and schwartz 5 kingdoms, i would have to say it is a plasmodial slime mold which they consider to be in the kingdom protoctista as opposed to fungi....wa wa wa....