Anger

Elder Ulisses Sores, of the Presidency of the Seventy, Be Meek and Lowly of Heart, General Conference October 2013
“Another important step to becoming meek is learning how to control our temper. Because the natural man dwells within each one of us and because we live in a world full of pressure, controlling our temper may become one of the challenges in our lives. Think for a few seconds how you react when someone does not comply with your desires the moment you want them to. What about when people disagree with your ideas, even though you are absolutely sure that they represent the proper solution to a problem? What is your response when someone offends you, critiques your efforts, or is simply unkind because he or she is in a bad mood? At these moments and in other difficult situations, we must learn to control our temper and convey our feelings with patience and gentle persuasion. This is most important within our homes and within our relationships with our eternal companions. ”

Elder Richard G Scott, How to Obtain Revelation and Inspiration for Your Personal Life, April 2012 General Conference
“There are some practical principles that enhance revelation. First, yielding to emotions such as anger or hurt or defensiveness will drive away the Holy Ghost. Those emotions must be eliminated, or our chance for receiving revelation is slight.
Another principle is to be cautious with humor. Loud, inappropriate laughter will offend the Spirit. A good sense of humor helps revelation; loud laughter does not. A sense of humor is an escape valve for the pressures of life.
Another enemy to revelation comes from exaggeration or loudness in what is stated. Careful, quiet speech will favor the receipt of revelation.”