The Russian Sleep Experiment

After 3 more days passed, the researchers checked the microphones hourly to make sure they were working, since they thought it impossible that no sound could be coming with 5 people inside. The oxygen consumption in the chamber indicated that all 5 must still be alive. In fact it was the amount of oxygen 5 people would consume at a very heavy level of strenuous exercise. On the morning of the 14th day the researchers did something they said they would not do to get a reaction from the captives, they used the intercom inside the chamber, hoping to provoke any response from the captives they were afraid were either dead or vegetables.

They announced: "We are opening the chamber to test the microphones step away from the door and lie flat on the floor or you will be shot. Compliance will earn one of you your immediate freedom."

To their surprise they heard a single phrase in a calm voice response: "We no longer want to be freed."