[Vasu]

No, they decide whether or not to admit patients into the hospital based on how they respond to the test. And the test is, they're given a spoon, a cup and a bucket, and told to empty the bath tub. The visitor thinks a sensible person would use the bucket since that would be faster, but the director says that a sensible person would pull the plug in the bath tub.

And then he decides to admit the visitor because he's abnormal.