I have not seen this before, I guess I always miss it. For those of you who dont know Ferguson is not the only one to do this with cards. Ricky Jay, the craps dealer from "Deadwood" wrote a book on this called "Cards as Weapons" probably in the late 70s. I remember watching him on tv when I was a youngster either on "Thats Incredible" or some Guinness Book special. He could throw a playing card 90 mph and stick it into a sheetrock wall. After seeing that show there were cards all over the house. At 90 mph, you could put someones eye out.