Plumbing the Depths

We've been turning The Mystery Plumber (see below) over and over in our minds, and we just can't find any other reason for VRAHOS to send their odious minions that what was suggested for The Mystery Photographer. Basically the story goes, "Nefarious development corporation [VRAHOS] fears upstart publisher will leave with the ceiling, floors, toilets, and walls they built and paid for." Hmm....toilets, huh? Anyone know a good plumber?