The Psyche Ward.

Visiting the psyche ward, a man asked how doctors decide to institutionalize a patient.
"Well," the director said, "we fill a bathtub, then offer a teaspoon,a teacup and a bucket to the patient and ask him or her to empty the tub."
"I get it," replied the visitor, "A normal person would use the bucket."
"No," said the director, " a normal person would pull the plug."

True, thats a good one,

Lock me up