Coming back from Tokyo last year a few days after Fukushima:
"Why are you wearing a sports coat?"
Seriously, never seen a pax wearing a coat before?
And then I was also "selected" for secondary customs which spent several minutes questioning me about some Japanese candy I'd brought home.
Then another, earlier today after DOH-IAH: "Who paid for your trip?" I did you twit.
Just another day clearing immigration at IAH...