This week some man at the Mandela funeral in South Africa pretended to be a "sign language interpreter" for the benefit of the deaf. It was later revealed that the man's gestures were not sign language at all, but just fake gestures that he made up. Some are saying that this fakery was appropriate for both Mandela and many of the heads of state who spoke. I found the video below that shows another example of fake sign language interpretation. Enjoy.