Here... try these for "empty force", etc.:
http://www.youtube.com/watch?v=GQdJf-rTVFo
http://youtube.com/watch?v=-DylNVUN_3I
This could be a good conversation, because Derren Brown openly admits that he manipulates peoples' expectations... which is very much what happens in most of the martial "no touch" things. Regardless of how effective a particular martial art may be.... my point would be that I'm leary of people who use this form of psychological manipulation and mix it in as a "real" part of a martial art.
Best
Mike