I wouldn't be so quick on the draw Rotorkop. I never cease to be amazed what people will fly never mind taxi.
Quite a few years ago we had a phone call from a pilot who just tried to fly a Hughes 300 helicopter owned by someone else. Didn't even get off the ground. On inspection it was found that the flange that holds the tail gearbox to the tailboom was trying to leave having elongated the (5?) mounting bolt holes to twice normal size. The bolt that held the tail rotor to the hub was worn half way through and had to be sawn out to remove the hub. In addition the threaded bush in the tail rotor hub that tightened onto the strap pack had all the threads worn off one side. It must have been flying for a long time with major problems to end up like that. Owner lucky to survive.