Behe uses the analogy of a mousetrap to illustrate this concept. James Henry Atkinson of Leeds invented the mousetrap in 1898. It could also contain booby prizes such as a mousetrap or a bag of sweets. Christie herself did not expect "The Mousetrap" to run for such a long time. He uses his candy cane to hook the cheese off the mousetrap. John H. McDonald even showed his example of a mousetrap to be reducible. "Toward Zero" was included in the 1978 Christie play collection, "The Mousetrap and Other Plays". The suggestion to call it "The Mousetrap" came from Christie's son-in-law, Anthony Hicks. But Jerry emerges from his hole avoiding a Christmas-themed mousetrap placed by his hole. Paul Antony-Barber later played Ludovic Comfort in the audio play "The Magic Mousetrap". The first example was Murray Leinster's novella "The Psionic Mousetrap" published in early 1955. After six misses, Jerry substitutes a mousetrap for the white keys just below it. Removal of any one piece destroys the function of the mousetrap. One accident at the Mousetrap, a complex interchange, had national ramifications. The money raised by the performance went towards Mousetrap Theatre Projects.