Every now and then, one or both of my children will feel the need to tell me that they hate me. I know that they really don't mean it; that they are just mad at me for whatever I happen to be doing to them at the moment (usually it is for what I am not letting them do). My usual response is to tell them that I still love them (no matter how unlovable they may be at that moment).
So, today, David and Isaac were fighting over Legos and Isaac told David "I hate you" to which he responded "Well, I still love you anyway!" Lesson learned :)