If you find yourself needing to rappel and all you have is a rope but no harness or rappel device, you can do an emergency body rappel. Like the name implies, this method should only be used in emergencies. There are 2 main techniques for emergency body rappels: the Dülfersitz (e.g. Classical) or the South African Abseil. The South African Abseil is both safer and less painful than the Dülfersitz, so that is the method I will describe here.