The more i look at this accident and thread, the more i shake my head.
Even if this clown had managed to land on an unchocked dolly, what did he think would happen when he rolled the twist grip (it is a twist grip in a B3e) to the idle position. There is a very good chance that the whole works would start spinning on the ground causing an accident anyway. The flight manual states clearly to exercise caution on slippery surfaces and i can't imagine something more slippery than wheels on a hard surface!
