A woman goes to the doctor and says, “Doctor, I have a terrible problem with uncontrollable flatulence. But even though I fart constantly, they’re silent and they have no smell. I’m farting my head off right now but nobody would ever know.” The doctor gives her some tablets and tells her to take one twice a day and come back in a week. A week later she’s back. The doctor asks how she’s getting on. The woman replies, “I don’t know what were in these tablets you gave me, doctor, but I’m still farting all the time. They’re still silent farts but now they smell absolutely terrible!” The doctor says, “Great, that’s your sinuses clear, now we need to work on your hearing.”