ID and BP checked at ORD AA terminal and I proceed to WTMD when a TSA dude with a clipboard stops me and says, "I need to ask you a few questions."

1) Where are you headed today? [Boston]
2) Is this your origin [HUH?]
2a) Did you come from somewhere else? [HUH????]
2b) Did you fly from somewhere else today [No]
3) Are you connecting to somewhere? [No]

He checked some boxes on his form and I was on my way.

If this is their attempt at behavior profiling it's way off the mark. The questions made no sense and I got a sense the guy didn't even know what he's asking. At least the boarding checks in LHR make sense (where are you staying in London, etc.) Can anyone shed some light in here?