South Australia is considering outlawing dangerous planking attempts as the increasingly-popular social media-fueled craze puts the fragile lives of the state's vulnerable youth at serious risk.

Crikey understands that a secret cabinet submission, circulated under the auspices of freshly-minted Attorney General John Rau, is doing the rounds in government circles that makes some acts of planking -- in which adherents are photographed or videoed lying face down on a random object parallel to the ground -- a criminal offence. Unspecified "related behaviour" would also fall under its orbit.