Check this:
http://www.youtube.com/watch?v=eflhEuSwKl8
What we see is someone secretly filming the staff of some Chinese school while they're generously giving money for the earthquake victims in front of a TV camera from Chinese national TV.
Then the camera is switched off, the donations box is turned upside down and emptied to hand over the money to a group of students waiting in line to generously donate the exact same money while the camera is running again.
Then the camera is switched off, the donations box is turned uside down and emptied to... --- ah, I'm sure you'll get the idea by now.