Marc presents four staple guns, explaining that one is genuinely loaded with an industrial staple. A spectator freely arranges and numbers the guns, while other participants make apparently free choices from envelopes that secretly correspond to those numbers. One by one, the selected staple guns are fired just above the participants’ hands and prove harmless. In the finale, Marc reveals that the only gun nobody selected was number two, then fires it to prove it really was loaded, showing just how dangerous the choices appeared to be.
