Some amazing colossal asshat turned in our copy of Einstein's Dreams riddled with pencil marks and mathematical equations.
On almost every single one of its 179 pages there are marks, usually in the form of underlined words, phrases set off in brackets, page numbers ticked to remind this bookmark-deprived MENSA-candidate which pages had already been read, occasional pen marks, and at the end of several of its chapters, or in any amount of blank page space otherwise available, there are scribbled equations to be found.
Genius that I am, I checked the book out to myself so I could take it home and better study these scribblings for reporting here. Unfortunately, I didn't first use our circulation system's capability to look up the last patron to have checked out the book before I checked it out to myself. Now I'm the last person to have checked it out, so we may never know the name of the jerk who defaced our book.
Some of us are just too smart for our own good.