2014-02-26
Explanation
The Joke
A passenger on a plane notices they are stuck next to a proselytizer -- someone who wants to share "the good word about our Lord and Savior." The enthusiastic missionary says they will be seated together for nine and a half hours, giving them plenty of time to evangelize. The passenger responds with apparent enthusiasm ("Sure! That sounds great!") but the narration reveals a much darker truth: "Ever so slowly, I compressed the cyanide capsule hidden in my tooth."
The Humor
The comedy comes from the extreme escalation of a universally relatable annoyance. Being trapped next to a talkative stranger on a long flight -- especially one intent on religious conversion -- is a common dread. The joke takes this mild social discomfort and cranks it to an absurd extreme: the passenger would literally rather die by cyanide pill (spy-movie style) than endure nine hours of unsolicited proselytizing. The contrast between the cheerful spoken response and the grim internal narration creates a darkly comic dissonance. The cyanide capsule is a reference to Cold War-era spies who carried suicide pills, suggesting this person came prepared for exactly this scenario, which makes the joke even more absurd.