Kind of reminds me of something that happened in one of the college classes I took a bunch of years ago.

On a day when we were supposed to take a test or get a grade or something, one young man entered the classroom, took his seat directly in front of the teacher (and just to my right), gave her a big, friendly smile, and said, "That's a nice dress you're wearing". This was a deep-thinking, quiet young man who wasn't given to making comments like that to people.

I turned to him and said, "You're taking Intro to Psychology this semester, aren't you?"

He got a sheepish look on his face and said, "Yeah... "