A rare study of the vale of self-denigrating humor in Japan: “The value of constructing relationships through self-denigrating humor and regional-cultural differences in Japan: A focus on blunder-telling behavior,” Sora Niwa and Shun’ichi Maruno, Journal of Social, Evolutionary and Cultural Psychology, 3(2), 2009, 133-154. Here is a sampling of questions used in the research: