They violate the worlds shortest and most profound sales course. "Know your stuff, know their stuff" From the article "I am thinking – does this guy not want t

They violate the worlds shortest and most profound sales course. "Know your stuff, know their stuff" From the article "I am thinking – does this guy not want to hear me? I am detecting a pattern: not only he doesn’t want to listen, he actually doesn’t care to consume any information at all."