There was this patient who visited a doctor one day.

"Doctor, can you help me?", the patient asked the doctor. "I have this ailment in which i silently fart uncontrollably. This morning while i was waiting for the bus, i did it lots of times, when i was in a meeting earlier, i did it lots of times. Just this minute, I am also feeling that i am passing silent gas again."

"I know.", said the doctor. "But first, i need to refer you first to an ear specialist...."