Nasty.
Reminds me of the time I was in "downtown" Cancun looking for a place to take a piss. I went into the PUBLIC HOMBRE'S ROOM. Was just a big room with a dirt floor. THAT WAS ALL.
So I stepped gingerly, did my business, and left, all the while trying not to puke.
Last time I went to Mexico and I still don't want to go back.