One of my fellow studes on 67 Crewman course at Shawbury disembarked a Wessex for the stops without removing his monkey harness and took the entire rail and mountings with him...this then grounded the entire Global Fleet for 2 days until we were told to use one of the stretcher points whilst they figured out how he could have broken it
He was called Jabba Ten-Bellies after that....
Also had a guy on ALM Ground school at Finningley called Dino...brain the size of a Walnut