Two psychiatrists met, did not see each other from the universe. The first says:
What was your strangest patient?
I had a sick man who lived in a fictional world. He believed that he had an uncle in America who was about to leave him a huge inheritance, and so the patient was constantly waiting for letters from there. He was sitting at home and waiting for letters. I have been treating him for 7 years. And when I was almost healed, this crazy letter came!