"Like Mr. Isaiah"

This Fall I started to teach Malachi and Isaiah to call someone "Mr " and "Miss ". I always thought that it showed honor to your elders and so I wanted my kiddos to begin that tradition. I had no idea that Isaiah would take it to a whole, new level, though. He decided that he needs to call himself "Mr Isaiah". For example, if he needs a drink, he'll say, "Mommy may Isaiah have a drink, like Mr. Isaiah?" He has also started calling Malachi, "Mr. Malachi". Now if only I could get him to remember to call his elders by "Mr" or "Miss"...