I have, on two occasions, actually tossed a book in the trash rather than have someone else stumble upon it. Arguably worse than physical mutilation and I consider myself a book lover.

And, for several others, I have physically cut out and disposed of offending chapters or introductions using the same physical technique as the article suggests. Deeply emotionally satisfying, and not an option available for DRM e-books, as far as I know. And again, a book lover.