Why am I so mean?

Today started out sunny and full of love and laughter. About halfway through the day I found myself yelling, impatient, and just plain mean. You know when your yelling at your kid, and then thier response is a returning yell? And then you yell at them for yelling at you? Yeah, that was me today. Usually about halfway through the second round of 'yelling because your yelling' , I realize what I am doing and of course, apologize or laugh in realization. My rule for my kids has always been that they are entitled to speak to me with the same amount of respect I speak to them. It's intelligent in theory, but the reality of it makes me crazy. It teaches me to keep myself in check, and to control my temper and emotions. I am reminded of a chapter in one of my most read books on parenting (Christlike Parenting by Dr Glenn Latham) The chapter called 'Revile not.' It's time to delve back into this book I assume. It talks about Christ and how he was treated, and yet he never was one to strike back. What a supreme example! In the face of mockery and rejection, even to the very end when he was crucified. He reviled not.
Anger is not an emotion that has to be within us. Obviously, I am lacking in that department, but I am learning that we have control over what we feel, and how we choose to direct it. I think it is time for me to crack open that book and re evaluate my ability to parent. And to all of those who might be reading this, This book has changed my life. It has changed my marriage. I strongly suggest you invest in it.