AAAH! *makes sign to ward off evil* Nononono, I won't look at it now, I won't look at it now, my self-control is a thing of iron... I'll do it later. *sobs* I HAD PLANS FOR TODAY! And as for the nail-bomb, I'm guessing that this is because he is no longer in the book-world, he's in the real one, and has to use 'real-world' methods. He's probably bound by some sort of interdimensional laws that won't allow him to do anything outright fantastic, just improbable.