Thanks @d-pend, what really galls me, is that (and this is why the guy doesn't like me so much) I used to WORK IN MAINTENANCE at the public housing back home.
I've DONE all this myself (well not the wall tile) so I could have done all this, and he KNOWS I KNOW how slack he is.
I've consulted with a few people, the wiring while disturbing, isn't dangerous (to me, it might allow the device to short, requiring a new heater to be installed, and I have the photos to show why)
Ah well, it is what it is, and now I can finally get a HOT shower.