Monday Puzzle

As of today The Presurfer, in cooperation with pzzlr.com, will bring you a puzzle every Monday. Just to tickle your brain.
image credit: Tamar Hayardeni cc
During a visit to a mental asylum, a visitor asked the Director what the criteria is that defines if a patient should be institutionalized. 'Well,' said the Director, 'we fill up a bathtub. Then we offer a teaspoon, a teacup, and a bucket to the patient and ask the patient to empty the bathtub.'
Would you use:
1. the spoon?
2. the teacup?
3. the bucket?
'Oh, I understand,' said the visitor. 'A normal person would choose the bucket, as it is larger than the spoon.' What was the director's response?
You can find the answer here.