your Linux crashed. Ctrl+Alt+Backspace does nothing, nor do the F-keys. You know you shouldn’t have installed that bad driver, but you did it anyway. Here is how you do a safe reboots of the system avoiding the power button.
a series of learning activities that reveals a little-known secret: computer science isn't really about computers at all. Unplugged teaches principles of computer science through games and puzzles.
Blind compliance to authority. This should be a case study for psychologists, a wake up call to the education system and force a reflection about society. This was put into a movie Compliance (2012) and is covered in Wikipedia's article (http://en.wikipedia.org/wiki/Strip_search_prank_call_scam).