Via the always excellent SMBC.
I would say this is a close approximation to how I operate in town – I just usually forget the notepad 😉
On a more serious note, it is true that people who do economics do tend to be very analytical about social situations – that is the field we work in, that is what we do, and we are a self-selected group that does that. It reminds me of that facetious paper that did an anthropological analysis of economists – does anyone know where that is so I can link it here? Update: Here, thanks Eric Crampton.