Then why bring prison up? Or are all hispanics that you know incarcerated somewhere?
OK I brought prison up because my friend who told me about this works in one and that is where HE first encountered this. He had to help take an inmate to the infirmary after the guy had attempted to remove the marble because it was "bothering" him. Turns out that an infection had set in and yes "bother" would be putting it mildly from the description I heard of the swelling.
As for the other question, since I live in CA where the hispanic population is quite large the answer is no, not ALL of them. Wouldn't have the room for that. /Joking off