Usually a social reject who must be banished to a far-off place for multiple years under the pretense of understanding how the marginalized people of the Earth live and think. Unfortunate groups that are forced to tolerate cultural anthropologists living in their midst usually send the village idiot to distract the anthropologist for as long as possible.
Cultural anthropologist speak: "Fed up with the banal and decrepit humdrum of American society, I took off for the remote lands of the Xanabu. They were overjoyed at my arrival and I have already taken down 100 pages of stories from the old blind man who greeted me. These are said to be sacred, ancient tales."