Here's one that I have with a relative on a fairly regular basis. I'm perplexed every single time.
One of my kid is getting over one of the many bugs going around. Every time one of the kids is sick, Relative wants to know where they got it. Since they go to Germ Factories (aka school) and I don't generally keep them in a bubble AND I work in an office with lots of other people, I don't really dwell on it. Unless I was sick first, I usually just assume they got it at school.
But Relative keeps asking me, "Where do you suppose she got it?" I don't know if she wants to know if it was Jimmy Johnson who passed the dreadful germ to DD on Tuesday, January 22 at 9:37am near the water fountain or what. I can see it it were a very rare disease that no one else had but something common that running rampant? Who cares?