Fred and Mabel were both patients in a mental hospital. One day as they both walked beside the swimming pool, Mabel jumped into the deep end and sank to the bottom. Without a thought for his own safety, Fred jumped in after her, brought her to the surface, hauled her out, gave her the kiss of life and saved her.
The next day happened to be Fred's annual review. He was brought before the hospital board, where the director told him, "Fred, I have some good news and some bad news : the good news is that in light of your heroic act yesterday we consider that you are sane and can be released from this home back into society. The bad news is, I'm afraid, that Mabel, the patient you saved, shortly afterwards hung herself in the bathroom with the belt from her bathrobe. I'm sorry but she's dead."
"She didn't hang herself," Fred replied, "I put her there to dry."