did i hear you correctly?

Simon has gotten increasingly verbal over the last couple of months and he truly takes us off guard with things he comes up with sometimes, just because it seems like it happened overnight. How I've waited to hear what's going through his mind and now it's all coming so clear. Today in the car I kept hearing him say the same phrase over and over and I wasn't paying much attention until I realized that he was saying "POO-head". I turned around and asked Ella, "What is he saying?" just to confirm my suspicions. (I was sincerely giving him the benefit of the doubt since he has a great deal of catching up to do as far as talking is concerned and I was reluctant to believe that "poo-head" would be one of the newest words in his blossoming vocabulary.) Unfortunately, Ella confirmed that I was hearing correctly. I sternly corrected Simon, trying very hard to be intimidating rather than burst out laughing. I told him that "poo-head" is not a nice name to call someone and we don't use that word and that if he continued to use the word, he would need to be punished. Not a moment later, Ella tattles that he has said the word again. I again correct him and give him a tap on the leg just to let him know he is on his way to punishment. (Driving in the car is not the ideal place to inflict punishment, however.) After I turned back around, I hear Ella whispering to him and realize that she is provoking him to say the word again so that he will get in trouble! I turn around to face the backseat once again and say in my intimidating, "Mom-is-about-to-throw-down" voice, "Ella, are you trying to get him in trouble??!" To which Simon extends his pointed finger in his sister's direction and says loudly, "ELLA DID IT!" And then we all melted in laughter. And so the sibling rivalry begins!