On one particular Wednesday Karen Tiu has a coworker out (sick? dead?) and is responsible for scheduling ten meetings and printing and delivering a stack of legal briefs and rebooking an afternoon of meetings in two conference rooms because they've been claimed by the science team (ideally located for summonings, apparently) and then clearing out the closets of those conference rooms because the science team complains they are unusable - full of junk that's interfering with the calibration on their summonings.
It is quite apparent that the summonings have been badly calibrated, because now this conference room has half of a demon (the left half) and the horns of a demon from an entirely different species and a swiss-cheese corpse that might have been human.