Knowing Why

If someone climbed a tree and won’t come down, why? Do you know why?

I don’t know why he won’t come down. I’m sure I don’t. I even doubt that he knows why. In fact, I’m sure I—he—has no idea why.

Knowing why is not something I am aware of, certainly. I mean, er, no. No, no, no! You’ll not find me claiming any such thing, I can assure you.