The Spoon Bending Trick
The US$ 1 million challenge
James Randi Educational Foundation
In the conditions and rules governing his $1 million challenge, Randi plainly states that both parties (himself and the party accepting the challenge) must agree in advance as to what conditions of the test constitute a "success" and what constitutes a "failure". He also refuses to accept any challengers who might suffer serious injury or death as a result of the test they intend to undergo.
Critics say that Randi has set up the system so that the million-dollar challenge cannot be passed, despite the fact that contestants are allowed to participate in setting conditions for success and failure. Randi himself states that "What if someone wins the million dollars? ... I think it's very highly unlikely.", but bases this on the unlikelihood of the paranormal. For details of the disputes, see James Randi Educational Foundation.