So I read ahead and finished all the books a few times, but something I noticed on a reread of WoR: In the Taln interlude, one guy mentions that Hoid hit himself in the head with a rock several times. Hoid can't hurt himself. How could he hit himself in the head with a rock (several times, no less)? Workarounds: He didn't actually hit himself in the head with a rock, merely pretended to. He doesn't consider hitting himself in the head with a rock to be hurting himself. He genuinely hurt himself by hitting himself in the head with a rock (since his inability to hurt people isn't a complete incapability, it just causes him pain to do so or even think of doing so).