Asking me the same question twice, within moments (even if it is disguised as a new question).
I don't know why it drives me bonkers.
You asked a very simple question, maybe even a Y/N question.
I gave a clear and succinct answer leaving zero doubt; I spoke plainly and with adequate volume. Maybe it was a question of fact - I am telling you what I know about it without hedging. Maybe it is an opinion - again, that's my current opinion without prevarication.
You ask the same question again.
So,
-you didn't like my answer and are trying to see if I will change my mind.
-you are challenging my knowledge, and need to see if I will back down from what facts I have on the topic.
-you are giving me a chance to 'correct' myself from my 'bad' opinion.
-you are testing to see if I was really listening the first time.
-None of those? Well, maybe you yield immense pleasure from annoying the flippin' hell out of me.
eg:
You: What color is the sky? (on a cloudless, clear mid-day)
Me: (plainly, clearly and with projection to my voice) Blue.
You: Do you really think the sky is blue?
Me: (pause to maintain control) Yep, still blue - I see no other color, shade or hue. Just blue.
(I will even go along good-naturedly with well-intentioned jesting about the question - for example in this question where the asker now says something about rods, cones, atmospheric scatter making it only 'appear' blue. Hahahah, you got me.
Indeed, I also give considerable leeway in social situations, or to allow for cultural norms such as; (third query from same person) "Are you sure you don't want another serving of Aunt Mabel's potato salad" "No, it's delicious but I'm pretty much stuffed, thanks" - see, I can be flexible and accommodating about it.
But it still drives me Stark Raving Mad.
I think I need medicine for this. The liquid, in-the-bar-cabinet kind.