Book excerpt: "Guy" and "guys" are used so ubiquitously in daily conversation, we scarcely notice them. But both derive from the name of England's greatest terrorist, Guy Fawkes. Acclaimed expert on words Allan Metcalf dives deep into the strange and unprecedented history of America's favorite and most controversial pronoun. Along the way, a cast of characters as interesting as Guy Fawkes himself make an appearance, including kings and queens of England, popes, George Washington, show tunes' crooners, and today's Occupy protesters.