A single middle-aged man goes to Hong Kong for vacation. While he is there he has relations with a woman of the evening. Two weeks after coming home he noticed his dick has turned black. He goes to the doctor and the doctor examines him and asks.  have you been in Hong Kong lately? He answered yes.  the doctor then asked were you with anybody? He answers yes. The doctor tells him I'm sorry to tell you this but you have what they are calling Hong Kong Dong.  the only known cure is amputation. He pleads with the doctor and says there must be something else.  the doctor apologizes again and says there is no known cure amputation is the only way.  again he pleads and the doctor tells him. Perhaps if you go back to Hong Kong and see their doctors the disease originated  there they may have something. So he goes back to Hong Kong and makes an appointment with the doctor.  the doctor examines him and tell him yes you have Hong Kong Dong. The man tells the Hong Kong doctor the American doctors have said the only cure is amputation. The Hong Kong doctor laughs and says, American doctors all they want to do is operate make money make money operate, you no worry in 2 or 3 weeks it'll fall off all by itself.