What they didn't teach you in economic class ( very funny):
http://www.youtube.com/watch?v=YlVDGmjz7eM

Not so funny:
http://www.youtube.com/watch?v=RXZumpbHOVA&feature=related

http://www.youtube.com/watch?v=Dq0zgxPGOD0&feature=related

http://www.youtube.com/watch?v=aATm5cON87M

I don't know what I just posted. I just did it in fun. I did it irresponsibly...