Vending machines have been developing unique personalities for some time. We’ve had generous ones, sadistic ones, patriotic ones. Now, we’ve got an exceedingly empathetic one. Check out the video below from a South African airport, where coffee roaster Douwe Egberts rigged up its vending machine with facial-recognition software to dispense free cups of coffee to anyone who yawned. It’s a nice stunt that turned those yawns to smiles. The fittingly named agency behind it: Joe Public

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http://www.youtube.com/watch?feature=player_embedded&v=HOTQ8z0fQHo