Unusual Test Answer

A question had appeared in an examination which read, "Give four uses of breast milk?"

A student began to answer the question.

1. No need to boil.

2. Cats can't steal them.

3. Available whenever necessary.

But the fourth point eluded him. When there were barely a couple of minutes for the exam to close the much required fourth point flashed to his mind. So he completed the answer by writing...

4. Available in attractive containers of various sizes.