According to a softball interview with MTV's Kurt Loder, critics of the movie should "Just thank God we didn't show you the enemas." Gibson went on to leak these details:
There are whole Mayan wall murals devoted to guys getting enemas from these women in public. It would have been like public enema number one. So we did spare you that. Critics who call this movie a bloodbath—I don't know, I think that's a little over the top.Mesoamerican ArchaelogyElizabeth M. BrumfielMaya-Archaelogy.org
As for Gibson's depiction of these rituals, the director can always dump it on the DVD.