A guy from the Deep South moves to New York and he's amazed
by the indoor plumbing. He's so intrigued by the way the toilets work that he goes to the Sewage Disposal Plant to check it out. One of the inspectors shows him to the conveyor belt that carries all the bowel movements.
As the piles of sh*t parade by them, the inspector says,
"You can tell by inspection who the assorted feces belong
to. See that one? I'm sure it's the turd of a Mexican. See
the pieces of taco shell, and the tomato seeds?"
"And this next one is obviously the turd of a Chinaman or a Jap...see the fish eyes and the rice in it?"
"And this next one is surely from a queer."
Our Southern friend asks, "How can you tell it was from a queer?"
The inspector answers, "Well see, it's dented on one end."