Potential defenses to civil liability for a negligent entrustment claim include (but are not limited to): The car owner (entrustor) didn't know and was not on notice that the driver (entrustee) was unfit to drive. The driver did not cause the auto accident. The injured person's injuries were not caused by the driver. The defendant's entrustment of the vehicle to the driver was consistent with what a reasonable person would do under similar circumstances.