Your digestive system is your body's Fun House, whereby food goes on a long, dark, scary ride, taking all kinds of unexpected twists and turns, being attacked by vicious secretions along the way, and not knowing until the last minute whether it will be turned into a useful body part or ejected into the Dark Hole by Mister Sphincter.

Dave Barry's Stay Fit and Healthy Until You're Dead (ed. Rodale, 1985) - ISBN: 9780878575701