[who]

An elderly lady complains to the M.D. that she passes gas many times a day. "It's really more of a nuisance than a problem," she explains, "They're silent and they don't smell." The M.D. gives her a prescription and tells her to come back in a week.

She returns and says, "I don't know what it was you gave me, doc, but I still pass gas all the time, it is still silent, but it smells terribly!"

The M.D. replies, "Now that we've cleared up your sinuses, we'll see what we can do for your hearing."