File This Under "Say What?"

Walking onto campus this morning I saw a student stroll by, cell phone in hand, wearing a down jacket (a very nice, clean white one to be sure). Now, this strikes me as a little puzzling in 60 degree weather. However, maybe she was just cold. That's possible.

If so, though, why was she wearing flip-flops? Am I missing something here? Do toes stay warmer longer than our torsos?