A visitor to a mental institution asked the director how it was decided which patients should be kept in and which were ready to be discharged.
The director said: Well, we fill up a bath, then offer the patient a teaspoon, a teacup or a bucket and ask them to empty the bathtub.
The visitor said, Oh, I see, and of course a sane person would chose the bucket because it's the biggest.
The director said: No! A sane person would pull the plug out.
Would you like a bed near the window?