Yelling just eliminates our ability to remain calm, think clearly and compassionately, and to hear. All are important elements in a disagreement, in my very humble opinion. I mean, who could "outwise" Desmond Tutu on the topic of peaceful negotiations?!
No truer words have been spoken. A woman can't teach a boy to be a man, but she sure has a lot to do with the way he shows his love to the woman he chooses in life. Nurture your sons and allow their fathers to make them real men and you will raise a king!