It sounds like those patients were in a very nice calm place. During my K infusions (30-50mg/hr for 7 days) for chronic neuropathic pain I was in a single room in a hospital. There was enough to see and hear that the mind took them and ran with them. I had a fight with a shower curtain because it said I wasn't clean yet. I had conversations with my toothbrush and hairbrush. It took 24 hours for my daughter's reporting that a puppy had died to make sense.

And I'm not drug naive by a very long shot. On my 2nd infusion there was an older gentleman across the hall from me who had never had anything stronger than scotch whiskey. He was not having a good time at all.

7 days falling in and out of the K-hole while hallucinating is not as much fun as it sounds.