Gulp: Adventures on the Alimentary Canal

by Mary Roach

On the way here, I stopped in the office of a block captain who wanted to tell me about an inmate who was caught with two boxes of staples, a pencil sharpener, sharpener blades, and three jumbo binder rings in his rectum. He became known as “OD,” for Office Depot. They never found out what he intended to do with the stuff.