I've got a quiz-related one, which is that in my third year in university I went out with the chap who exclaimed "Homosexuals!"* in response to a University Challenge question to which the correct answer was "Regiments of the British Army". He's even in TV Tropes!

*my faulty memory improves the joke by having him buzz in before the question is finished, but YouTube is there to chasten me. Paxo's response is rather homophobic, no surprise there though. Bamber Gascoigne would never.