The cat is out of the bag. While I was in Washington, I stopped by the Library of Congress and slipped away with 13% of their materials. I stuffed the 17 million items in my pants and walked out without permission (the trick is, as you waddle past the guard, to mumble “I have got to go on a diet!”).
My motive was simply to have materials to start my own library, but I also always wanted to learn something about radial aircraft engines, the Polish monarchy, and Native American weaving. In my defense, I intended to photocopy the materials and then put them all back. Which reminds me: I also took one of those high-speed book photocopiers and 80,000 reams of paper.