A group of people were in group therapy for various mental conditions. After weeks of therapy, the doctor decides to find out who had made the most progress. He puts all his patients in a room and after struggling to make them silent, points to the wall and says, "The first one to open that door will get fifty dollars."

The patients rush to the wall and start pulling and shoving each other. Then the doctor sees one patient sitting in one corner. Thinking that the guy had realized that there was no door, he walks to him and asks him, "So why don't you want to get the fifty bucks?"

The patient calmly replies, "Those fools are never going to open that door unless they get the key first."