I do not know where Braden picked this up, but it's about the cutest thing ever and it makes me smile every time he says it! When you ask him a question that he's going to answer "yes" to, for some reason he always adds "I do" to it. Here's a little video of him playing on the iPad and he wanted my help. He asks me for help many times, "help me, Mommy!" often sounds like "yummy, Mommy!"