Would you like to be able to read minds? I think it would be incredible, but constantly hearing about how smart, good looking, sexy and great a person thinks they are would probably get old, amirite?
Sometimes you don't have to read a person's mind to determine what they think of themselves. A know-it-all is the worst kind of person. It really gets old listening and watching them pat themselves on the back. Telling us how smart they are, and belittling other people. It's a wonder they don't break their arm patting them self on the back