Once had a Brit Army Major tell us he wanted his Landrover underslinging to the next RV. No problem, we agreed to do it and got the load slinging equipment ready.
With the Landie rigged up, we walked to the aircraft to start up and launch. We noticed that he started to climb into his Landrover. When asked what he was doing, he replied that he was going to sit in the driver's seat and point the way to the drop!
I told him that a) Landies rotate in flight and b) if we lost an engine on takeoff or landing, he and his steed would get pickled off the hook.
He changed his mind at the thought of b) but it was very,
VERY tempting to let him try it...