Can an automobile guest-host relation terminate en route after the beginning of the journey? In the few cases where this question has been raised, the fact situations usually have contained common characteristics. They often have involved: 1. An initial guest-host relation, 2. Careless or negligent driving on the part of the operator, 3. A demand to be let out of the car by the guest, 4. The ignoring of, or refusal to recognize the validity of such demand by the driver, 5. A subsequent accident resulting in injuries to the guest.
Donald Friborg, Guest-Host Relation Termination after Beginning of Journey, 5 Clev.-Marshall L. Rev. 101 (1956)