Talking with my epidemiology professor, when I was finishing studying my medical degree, he told a group where we were all chatting, that the menu in the indigenous towns was very special, and you had to eat them when they offer it. What caught my attention the most of all the meats on the menu was the monkey head.
I would never say I wouldn't eat it. I think of the people who have eaten human flesh out of hunger; I imagine that if I had days without eating, lost in a jungle, and a tribe had this monkey's head cooked in their pot, I would do it, without a doubt I would ask for it and eat it.