You have no idea how similar that story sounds to many of her clients who ended up murdering someone.

Auditory hallucinations are much more common than visual hallucinations. She had one client whose demons (Aliens in this guys case) told him that they were going to torture his mother and harvest her organs. He killed his mother so she wouldn't have to go through the aliens torturing her. In his mind this was all very real. The worst part was that his mother was at least somewhat aware of the danger and had reached out to the state several times to get them to intervene and commit her son. They didn't do it and he killed her.

This is only one story. There are a LOT more where this one came from. Scary stuff.