An old man goes to the doctor and says “doc, I can’t stop farting. They’re silent with no smell, but I’ve let out 20 in the past 5 minutes sitting here!” The doc gives him some pills and tells him to come back next week. The next week the old man comes back and says “doc, I took the pills, the farts are still silent but now they really stink!”  The doc says “great, we’ve cleared your sinuses, now let’s work on your hearing!”