A doctor came across a patient he had valued for years and
saw that he was carrying sleeping pills in his hand, so wanted
to warn him: – Mr. Brown, I see sleeping pills you use, sometimes you may need it, but I want to warn you, those pills are very effective and addictive. The patient laughed and said that: – No, doctor. That’s no true. I’ve been using this medicine for 20 years, the pills have never become addictive!