The doctor of an old lady of 80 years retired and the lady goes to a new doctor, who, first of all, wants to see the list of medicines that had been prescribed. The new doctor is upset that contraceptive pills are also prescribed in the list. "Madam, do you know that these pills are contraceptive?". "They help me sleep at night". "I guarantee that it is scientifically impossible for these pills to help you sleep!" "Yes, I know: but, see, every morning I put one in the orange juice of my 16-year-old niece and ... believe me ... help me sleep at night!".