The TSA monkeys are actually trained to engage pilots in conversation to attempt to determine if there is anything suspicious about them...some TSA folks are just being friendly, but others are so obviously fake that I just glare at them and never say a word.

I actually got hassled in SLC once becuase my luggage was not ProPilot...got anal probed and the fifth degree...they had been trained that all flight crew use ProPilot (almost true). They kept coming back to the luggage issue, until I asked them what FAR required that I use a ProPilot rollaboard and and actually threatened to sue them. Then they got real polite.