A question had appeared in an examination which read: "Give four advantages of Breast milk." One student began to answer the question : 1. No need to boil 2. Cats can't steal them 3. Available whenever required But the fourth point eluded him. When there were barely a couple of minutes left for the exam to close, the much required fourth point flashed to his mind. So he completed the question by writing: 4. Available in attractive containers.