Borrowed my sister's '74 Camaro (auto) one evening and left her my four-speed '65 Valiant street-legal bracket racer. Came home that night, and the Valiant was still parked in the same spot.
Took my step-daughter out on a dirt road on the ranch in my 5-speed Porsche 914 (VW engine). She was just getting the hang of it when we turned around to head back to the house. I was still coaching her (off the gas, push in the clutch, move the gear selector, etc.) When she said "the clutch is gone". I thought she was nuts until I found the clutch cable snapped and the override spring was holding the pedal to the floor! She was right, the clutch pedal was no longer there.