Tom, a middle age gentlemen has a flatulence problem. He finally gets himself to the doctor.
“Doc”, he says “I’ve got a problem. I’m farting all the time. But, they are soundless and odorless. In fact since I’ve been in the this office I’ve farted 20 times.”
The doctor gives Tom a prescription and tells him to come back in a few weeks. Tom comes back in a few weeks and complains, “You made it worse, I’m still farting but now they smell terrible.”
The doctor says, “Well, we fixed your sense of smell now let’s work on your hearing.”