I know a guy who did that once ......once.
My school friend's older brother - he should have known better being a mechanic.
Working at home alone under his rodded Mark 3 Zephyr.....wheels not chocked, and when the parking brake let go, the axle housing dragged him by the chin on his back about 10 feet or so until the car hit the house. He was trapped for a few hours until someone got home.
Same guy drove that same car on their gravel road with vice-grips for a steering wheel. Scared the hell out of his mother at the time.

				














