Bathtub Test

During a visit to the mental asylum, a visitor asked the Director what criteria that defines a patient to be institutionalized. Well, said the Director, we fill up a bathtub, we offer a teaspoon, teacup, and a bucket to the patient and ask the patient to empty the bathtub.
Okay, here's your test:

1. Would you use the spoon?
2. Would you use the teacup?
3. Would you use the bucket?

"Oh, I understand," said the visitor. "A normal person would choose the bucket as it is larger than the spoon or the cup."

"Noooooo.." answered the Director. "A normal person would pull the plug."