*Hero falls from the top of a tall building/fortress/cliff*"Ah, I will simply deploy my grappling hook and pull myself to safety."*grappling hook deploys, hooks over wall, hero’s arms are ripped clean off*
The terminal velocity of a human is about 56 m/s (or 120 mph). Now, I don't know about you, but if someone tied my wrists to the back of a car and set off at 120mph, I'd expect them to come off pretty sharpish.
Notable Offenders: Batman, James Bond, that bit in Mulan where she manages to winch two adults and a horse up a cliff with one rope.