All but one stand in a circle and hold hands. By going under and over arms and legs and twisting round, etc, but never letting go of hands, the circle must muddle itself up until it can muddle no more, at which point they shout: "Doctor, doctor!" and the one person left returns and has to untangle the circle by telling them what to do and without touching. In order for the original circle to be restored, the participants must not let go of hands - this is a good example of working as a team!