Something about living in Korea seems to bring this out more in me than anywhere else. And I suspect possibly in other people. I wonder why that is?
(I should possibly note that the theory of mind is the ability to hypothesise what other minds are thinking and what they are thinking about what you are thinking. The Machiavellian Mind is the idea that we use our minds to anticipate the actions of others in a way that helps us and then use language to try and manipulate the actions of others.)