Hawaiian hospital authorities have clarified their policy on pets following an episode in which a horse was brought in to visit a sick patient (see http://news.bbc.co.uk/1/hi/world/americas/7310907.stm). The kind-hearted nag had made it to the third storey in an elevator.
It would never happen in the NHS. The only horse you'd find in a British hospital would be on the lunch menu.
We can only hope the American incident didn't take place in a psychiatric institution.
"I know you said I was stable now, doc, but do they really have to keep bringing the horses in here? I'm kinda phobic about that kind of thing."
"Step the clozapine up to 350mg, nurse. And put some hay down at the end of the bed."