Back in 2001 I was running a group through one of the Freeport Trilogy modules (don't remember which one), and the barbarian had taken a nasty fall through the interior of a hollow tower, hitting the bottom and having only a few hit points left.
The problem was that he'd been raging when he fell, and so had only about two rounds until it wore off and his Con bonus vanished, meaning that the resulting hit point loss would surely kill him. Worse, he'd been paralyzed by a flying serpent-man wizard, and couldn't move to save himself.
The cleric, worried for his friend, realized that there was no way to make it to the ground level in time. At which point, he looked at me and said the most awesome thing ever.
"I jump and grab hold of the flying serpent-man, stab him to death, and ride his corpse down to the ground."
It was one of those moments of sheer badassery - all the moreso for the fact that he pulled off every roll he needed (successfully jump, succeed on the grapple, make the attack, roll enough damage to kill his enemy). Needless to say, I was so impressed that I ruled that he rode the dead serpent-man down to the ground, and on the next round - the last of the barbarian's raging - was able to heal him enough that he survived.
There was much whooping and high-fiving around the game table that day.