At least the last pic is a moisture resistant fixture in their shower. I don't know looks like a lot of redneck home improvements to me. Not to say anything bad about rednecks....LOL.
Thanks to all who responded to this post, If any one else has or does come across things of this nature please post them , which means documenting them with a photo. We can all learn from them and if you find them you can't ignore them or your a$$ could be in a sling. So past or future share your findings for all to see ,and learn from.
I dont see a problem with all those pictures. Not at all. Every picture shows work for us and completely safe-ish situations. I'm sure our in-house safe-ish expert will completely disagree but hey! Perspective!
They'll wonder why the sewer is backing up into their bathtub pretty soon!
Plumbing roof vents allow air pressure into the sewer so sewage can flow to the sewer main, if the vent is blocked, it's like holding your finger on a straw and taking it out of the glass...the liquid won't flow.
It's usually out of ignorance, nobody ever explained basic, electricity, plumbing, gravity, etc... to them.ion
Remember... Gravity, like Evolution, is "just a scientific theory," so if you don't choose to believe in it you can just ignore it, and make sure it's not in your kids' textbooks.