News reporter asks the director of a mental hospital if they have a special test to check if a patient is mentally healthy, and ready to be released.
-Yes, we fill a bathtub with water, and beside it we put a spoon and a big mug. Then we ask a patient to empty the bathtub.
News reporter with a smile:Â And any healthy person will take a mug, right?
Doctor: No, a healthy person will remove a drain stopper…