A is knocked down by a vehicle. B, a stranger, who found A on the road in an unconscious state, takes A to a doctor. C, the doctor, provides treatment to A, who is in an unconscious state. In such a situation, there is no contract between A and C; and A can claim that he is not liable to pay for the services offered by the doctor, as he was unconscious at the time of treatment, and there is no agreement between the two.