A woman is very distraught because she hasn't had a date or any sex in quite sometime. Concerned that she may have something wrong with her, she decides to employ the medical expertise of a sex therapist. Her family doctor recommends Dr. Chang, a well-known Chinese sex therapist.
The next day, the woman enters the examination room, and Dr. Chang says, "Okay, take off all your crose." The woman thinks nothing of the doctor's request, considering she is in a doctor's office, after all.
Then, Dr. Chang says, "Now, get down and crawl reery fass to the other side of room." The reluctant woman complies. She gets down onto the floor and crawls to the other side of the room. The doctors holds back a smirk, slowly shakes his head, and says, "Your probrem vewy bad. You haf Ed Zachary Disease. Worse case I ever see. That why you not haf sex or dates."
Confused, the woman asks, "What in the world is this Ed Zachary Disease?" Dr. Chang replies, "It when your face rook Ed Zachary rike your ass."