Illusionist Derren Brown's video "Paying with Paper" supposedly demonstrates real-world instances whereby Brown pays for several items in cash: the rub being, the "cash" is blank paper.
It's quite obvious that the gesture of paying is done so as to coincide with verbal assurances such as (paraphrased) "it's fine...take it...you'll feel better". I'm curious whether this is the primary means Brown utilises, especially given the failure with the hotdog vendor.
With the aforementioned questions in mind, is it all a moot point, given this quote from Brown?:
‘(I use) magic, suggestion, psychology, misdirection and showmanship ...I happily admit cheating, as it’s all part of the game. I hope some of the fun for the viewer comes from not knowing what’s real and what isn’t. I am an entertainer first and foremost’.