There's a chance this is easy to fix, if it is a real problem. But I hope you'd agree it's pretty low priority compared to a lot of other fixes the game could use. I'll look at it sometime, and maybe we can see if it makes any meaningful difference at all.
Little things like this are kind of funny though, with the right perspective. How very Dungeon-Keeper-like: You can continue to gain a small amount of experience by even kicking a body while it's down and unconscious. Total self-centered disrespect for the nearly-dead.
I've noticed that many types of attacks (that were not intended to hit the unconscious unit, but rather a conscious unit near it) kill the enemy while they're unconscious. It's always bothered me. Do you think it would be better to make it so that no type of attack can have the collateral damage done to unconscious units? Or is that a good challenge/element of fight-management?