Would you say that every time I knock such a pitch into the outfield, I've done so unintentionally?

Nope. If you intentionally put yourself into a situation where you're going to have 90mph fastballs thrown near you, with the intention of hitting them with a baseball bat, I would not say that your subsequent hitting of a 90mph fastball with a bat was unintentional.

I'm going to drop this thread here, because I feel like you're sidestepping my questions rather than addressing them, and it's beginning to get on my nerves. (You are, of course, under no obligation to answer my questions. I'm also perfectly prepared to believe that you aren't intentionally sidestepping them.)