Silly Hallucination, I did know 2nd person exists. I just didn't want to confuse him, because it's used so very little, almost never. In fact, I didn't even know about the books you mentioned. So, you get partial credit for the correction.
From MST3K's spoof of "Hercules Unchained"--heard as Roman medic soldiers carry off an unconscious Greek Hercules on a 1950's Army green canvas stretcher: "Hi, we're IX-I-I. Did somebody dial IX-I-I?"