Believe it or not I have actually seen one worse. Where a guy had his sprinklers set to where it watered the disconnect. You could see all the way thru it , and when I opened it , you guessed it decentigration!
I had one that nasty once, at an old rental property.
I actually convinced the owner to have it replaced because it was becoming a fire/liability hazard. Biggest problem I had doing the changeout of the disconnect was avoiding the million wasp march on my big booty!
I never seen so many angry hornets in one place in all my days. YIKES!
Two things are infinite: the universe and human stupidity; and Im not sure about the universe. Albert Einstein