First hand? no.
Pictures? yes.
There's a reason it's called the Turd World.
yup ...
About 20 something years ago ...
we had an influx of “migrant” workers hired on to a mason crew that was working a big job.
We found the “blue” rooms being trashed, feces on the floor and walls , urine everywhere, paper just rolled and piled in with the mess.
We investigated the matter ... and it was found that our new friends didn't know much about “hygiene” ... so we had all the mason foreman do a little class for their crews.
Problem solved.
I know it sounds like I'm making this up .. but it's true.
God help us ......