I usually wonder if this is literal or metaphorical.
Did they really fling the book across the room? I certainly hope it wasn't a large hardback with a cat on the receiving end. The way it usually reads, though, I suspect that whether they did or did not throw the book, they want us to think they did. And the only reason I can see for this is to show how much they love books, how much the written word speaks to them, and just how passionate and emotive they are.
OK, if that's your measure, then you win. I don't throw books, no matter how much I don't like them.
I can get lost in books and music. I have stood in an audience, listening to a band with eyes closed, and just allowed it to wash over me. Simply standing there, a smile on my face, and a moment that transcends.
The same with books.
I've read through tiredness and beyond any realistic ability to comprehend the words simply because I loved it so much, was removed from this reality so far, and didn't want to lose it.
Yes, they move me - but not every album or book will. There are books I've persevered with and finished because I was determined to do so, but others I've just given up. I am much less forgiving with music but that's partly because I can skip ahead, sampling tracks, then remove the disc from the player before assigning it to a charity shop bag.
And then, like the above example reader, there are the books I don't like because they frustrate me or anger me. Depending on the context I may continue for a bit, or close it and return for another attempt, or simply stop at that point. But never, not once, have I thrown the book across the room.
But perhaps I'm wrong. Perhaps there are those who truly have thrown books across the room in anger. I'm just glad I wasn't at your place when there was a TV show that angered you.
I have no desire to be hit by a large flying flat-screen.