When you defeat enemies, it usually does a good job of telling you that you didnt knock them out, they are unwilling to keep fighting, they back off... some enemies that you dominate for that matter are the bandit, harpie or the slime; to name a few.
Another example of enemie you dont just beat are the centaur, they let you take control but it's out of respect after letting you join their camp. Btw, i also feel like the wereslut can game over with little counterplay if you do something repeatedly, but that's the kind of enemy she is, you have to beat her avoiding the game overs, that's why she's so weak.