Elderly couple Ralph and Edna were both patients in a mental hospital. One day while they were walking past the hospital swimming pool, when Ralph suddenly jumped into the deep end. He sank to the bottom of the pool and stayed there.
Edna promptly jumped in to save him, swimming to the bottom and pulling him out.
When the Head Nurse Director became aware of the heroic act, she immediately ordered Edna discharged from the hospital, as she was now considered mentally stable.
The Director went to tell Edna the news.
"Edna, I have good news and bad news. The good news is you're being discharged, since you were able to rationally respond to a crisis by jumping in and saving the life of the person you love... I have, therefore, concluded that your act displays sound mindedness. The bad news is that Ralph hung himself in the bathroom with his bathrobe belt shortly after you saved him and helped him back to the room you share. I am so sorry, Edna, but he's dead."
Edna stared the the Director and replied, "He didn't hang himself, I put him there to dry. How soon can I go home?"