During a visit to the mental asylum, a man asked the director how to determined if a patient should be reintegrated in society. "Well," said the director, "we fill up a buthtub, 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 man. "A normal person would use the bucket because it is bigger than the teespoon or teacup." "No." Said the director, "a normal person would pull the plug."