Slightly off-topic, but someone told me a story over the weekend about a driver who used a prosthetic arm attached to the steering wheel. He crashed, and to release himself from the car, had to detach the prosthetic arm from the rest of his arm. On getting out of the car, he said to the marshals "My arm...!" The marshals looked into the car saw the prosthetic arm dangling from the steering wheel and went white..
