What if my arms are already full of books, and I can't possibly carry anymore, and I'm far away from my original book-grabbing places and I see a book I have to have. Am I really going to go up/down a couple of flights of stairs to get back to the proper book section to magically find where one of my currently-being-held book goes so I can swap them? Heck no! I'm going to dump a book wherever I am on a shelf so I can grab the one I want. Yeah, you heard me!
LIBRARY BAD GUY
What if my arms are already full of books, and I can't possibly carry anymore, and I'm far away from my original book-grabbing places and I see a book I have to have. Am I really going to go up/down a couple of flights of stairs to get back to the proper book section to magically find where one of my currently-being-held book goes so I can swap them? Heck no! I'm going to dump a book wherever I am on a shelf so I can grab the one I want. Yeah, you heard me!