I told my doctor I hear buzzing.

This classic doctor's office gag is a masterclass in misdirection (Review), powered by a simple but brilliant pun. The humor hinges on the double meaning of the phrase "a bug going around." When a patient complains of a buzzing sound, our minds go to medical causes like tinnitus or an ear infection. We expect a clinical answer. The punchline, however, pivots to the most literal and absurd interpretation: an actual insect is flying around the room.

The joke works so well because it hijacks a piece of everyday language. We've all heard a doctor, parent, or coworker dismiss a minor illness with the line, "It's just a bug that's going around." It's a familiar, almost cliché, diagnosis for a common cold or flu. By placing this common phrase in a context where "bug" and "buzzing" have a completely different, non-medical meaning, the joke subverts our expectations for a perfectly silly payoff.