Little Old Lady.

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. My farts never smell and are
always silent. As a matter of fact, I've farted at least 20 times since I've
been here. You didn't know I was farting because they don't smell and are
silent." The doctor says, "I see. Take these pills 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, although still silent, stink terribly." The
doctor says, "Good. Now that we've cleared up your sinuses, let's work on your
hearing."