I very often find that my mind jumps to X as a solution. Then when X wasn't picked two things happen. Firstly, and sadly, I get a bit mentally stuck on X. Seco

I very often find that my mind jumps to X as a solution. Then when X wasn't picked two things happen. Firstly, and sadly, I get a bit mentally stuck on X. Secondly I assume I have missed something. Whatever I have missed is probably quite important, since otherwise X was a good choice. Both of these effects mean that I will probably learn a lot from knowing why someone decided not to do X. So, if I've been mulling the question for a while, and can't get an answer, I think it makes perfect sense to ask "why didn't you do X". After all, that is exactly what I am wondering in good faith. It sucks that the question is often used sarcastically, because to me it's a very useful question for understanding someone else's process.