A little old lady goes to the doctor and says, "Doctor I have this
problem with gas, but it really doesn't bother me too much. They never
smell and are always silent." "As a matter of fact, I've passed gas at
least 20 times since I've been here in your office. Of course, you
didn't know because they don't smell and are quite silent."
The doctor says, "I see. Please take two of these pills each day, and
come back to see me next week."
The next week the lady comes back.
"Doctor", she says, "I don't know what you gave me, but now my farts -
though still silent- really stink terribly."
The doctor replies, "Good!!! Now that we've cleared up your sinuses,
let's work on your hearing... "