Gilbert Gottfried used the joke in 2001 after a 9/11 joke backfired terribly, although the movie was apparently already in progress then, the author of the arti

Gilbert Gottfried used the joke in 2001 after a 9/11 joke backfired terribly, although the movie was apparently already in progress then, the author of the article says it was a well-known inside joke. http://observer.com/2001/10/observatory-6/ http://observer.com/2001/10/observatory-6/