Does Mercurio only offer the quest to get him some morphine from the Medical Center if you haven't picked up the explosives yet? Or can you do it later, like say checking in on him before you leave for downtown?
I'm finishing up a course that introduced me to some literature written by Indigenous Americans, and one of the things we looked at was a graphic novel about a being called the Deer Woman.
It's a legend among the tribes in the Great Plains like the Lakota, and it has several variations, but the basic story is that a woman who has been mistreated by men will transform into a deer-like creature and stampede the offender to death with her hooves. It's basically a cautionary tale for men and boys to treat people right, or face retribution by the spirits.
My professor said there were similar stories in a few cultures, and it got me wondering if there was something similar in the Poetic Edda or a deity who makes it their business.