update: I came back to feed him today and now we’re going to start a band
one word: Toxoplasmosis.
It’s a parasite that infects small animals, namely rodents and sometimes birds, and takes control of their brains. They lose fear of predators, in some cases becoming attracted to them. The hope for the parasite is that they’ll be eaten so they can carry on their life cycle through feces that’s eaten by another rodent.