Peeves

Your peeves may appear to be trivial to you or anybody else, but I think they are important. This is because they are manifestations of principles you hold that have been violated.

I guess that's why learning about someone's peeves is something we naturally do when we get to know new friends or consider romantic potentials. A lot can be discovered about what a person is like based on his or her peeves, and often they are more accurate because peeves are trivial enough to be unconscious, indicating that he/she isn't putting up a conscious front to grandly exhibit it.