Giving drones a sense of 'pain' could help them predict instability before it happens

Imagine you're running and you sprain your ankle. The pain makes you gingerly limp the rest of the way home. This is a great example of how nature adapts to failures in a system. The pain tells you: "If you continue running like normal, the injury will only get worse." So you naturally adjust the way you run. Drones currently cannot do this with a worn-out propeller.