<P> The book was a commercial success . In 2004, the US edition became a New York Times best - seller . Contrary to usual publishing practice, the US edition of the book left the original British conventions intact . </P> <P> The title of the book is a syntactic ambiguity ‍--‌a verbal fallacy arising from an ambiguous grammatical construction‍--‌and derived from a joke about bad punctuation: </P> <P> A panda walks into a café . He orders a sandwich, eats it, then draws a gun and proceeds to fire it at the other patrons . </P> <P> "Why?" asks the confused, surviving waiter amidst the carnage, as the panda makes towards the exit . The panda produces a badly punctuated wildlife manual and tosses it over his shoulder . </P>

Who walks in a restaurant eats shoots and leaves