During a visit to a mental hospital, a visitor
asked the Director what the criterion was which
defined whether or not a person should be admitted.

"Well," said the Director, "we fill up a bathtub,
then we offer a teaspoon, a teacup and a bucket to
the patient and ask him or her to empty the bathtub."

"Oh, I understand," said the visitor. "A normal
person would use the bucket because it's bigger than
the spoon or the teacup.

"No." said the Director, "A normal person would pull
the plug. Do you want a bed near the window?"