We naturally dislike when someone looks at us with disgust or disdain, even a stranger. This is because
mirror neurons allow us to see the opposite of how others perceive us, and most humans are uncomfortable with positive perceptions from strangers.
their negative perception of us, even if their view may not fully reflect the reality of our selves, threatens to become part of our self-image.
the looking-glass self allows us to see the reality of our negative traits as others do, and such reality hurts our self-concept.
humans feel the need to be liked by all members of their community, including those who are not part of one's social group.