[Aztlan] Maya graffiti?

[Robert Connolly]

I have found a website with images of Graffiti from Tikal.  As well, I
recollect having Fred Valdez point out some stick figure looking type images
on some interior temple walls at either Kinal or Rio Azul ­ don¹t remember
which.  I will appreciate if anyone can provide a solid reference on the
subject of graffiti at Maya sites.  Is there a marked and accepted
delineation between murals, more simpler wall paintings, and graffiti.

Thanks in advance,

Robert Connolly
Dept of Anthropology
University of Memphis