Real Life side-channels attacks December 2014
Some funny slides from Vitaly Shmatikov on side channels attacks: http://www.cs.utexas.edu/~shmat/courses/cs361s/sidechannels.pdf
So you can tell what someone is typing just by analyzing the sound of the fingers on the keyboard, from a certain distance.
If you observe someone typing at his computer from an outside window, you can analyze the reflections in many objects (glass teapots, plastic bottles, spoons!!! and even eyes).
Like we weren't worried enough.