

I would call those normal footprints, not inverse footprints. We call both additive and subtractive marks left by feet “footprints.”
If you were to step in ink, and then step onto paper, that would create a footprint.
If you were to step in drying concrete, that would also create a footprint.





Speaking of worms eating brains, there was this experiment where scientists trained a worm to find food. Then, they killed the worm, blended its brains or brain equivalent, and fed it to other worms. When those worms were put into the same environment, they already knew how to find the food, apparently having learned it from eating the other worm’s brains.
So, it’s possible that this worm ate some of RFK Jr’s brains and that the worm went insane as a result.
The idea that a worm could eat a small portion of RFK Jr’s brain and cause him significant mental impairment is laughable. He wasn’t using his brain in the first place. Certainly the worm got the worst of the exchange.