It'd be cool if you blacked out and woke up on the ground 3 hours later.
No, see, the problem with all of this is it takes control out of the player's hands. That's generally bad.
Also you don't want to watch yourself writhe around on the ground or fall asleep for 3 hours
every single time you kill a dragon. There are more than two dragons in the game, if you hadn't noticed.
In TES games the player character doesn't really have a voice, doesn't have facial expressions, and doesn't have fancy "lean against the wall because you're too cool for school" animations. It's meant to be a first person game.