It happens................
But only once to each of us.
Loading a CL44 in DXB with gold bars for India; I decided that it would be elegantly efficient to have the gang of loaders take a bar each up the forward stairs, down the fuselage, add the bar to the stack (which would spread forwards as loading progressed), and exit through the rear door to collect another bar and repeat the process.
Worked like a dream.........................until as the loader with the "critical" bar walked aft, the nosewheel gracefully rose off the ground, the loader accelerated downhill, those behind him accelerated down the steepening slope, you know the rest of the story.