I appreciate the comments so far. I especially liked the link to the other thread, TW, it was very helpful.
This paper I'm working on is an academic one for publication, putting the phenomena in context based on my research but also my experience. It'd be helpful if people could point to where they are getting their ideas so I can go there and see for myself. The problem that I see is that there's almost no literature on this other than people going "ah, it's just suggestion", and I think as skeptics you should all find to be pretty insufficient. First, how many people drop $10,000 on seeing a psychic surgeon, then suddenly realize their error when someone goes "ah, it's just a magic trick"? Second, the actual dynamics of suggestion are so poorly understood that it's like someone questioning Newton about why the planets moved in the way they did and him just going "ah, it's physics." That's not wrong, but it sure isn't a satisfying answer unless you agree with him before he opens his mouth.
I think that as skeptics we should really stop using suggestion as a way to unquestioningly dismiss things or and start thinking about dynamics of suggestion. To me it's kind of like the way that fundamentalists see something odd like hypnosis and go "oh, well that's clearly Satan", because Satan becomes a catch-all for everything that they don't understand.
As I've said, that guy in the video is me. I've done it in a university setting. Often people will tell me that the last thing that they remember is me sticking out my hand, then they wake up on the floor, or they remember feeling like they've been flooded with happiness (Or whatever. You can suggest what they will be flooded with.)
The point isn't to say that it's not social pressure, but that's not a great answer on its own. I use social pressure too, as well as a whole bag of other tricks, but people don't suddenly feel numb to pain or go into spasm or whatever just because they don't want to make you feel embarrassed. Also, it seems to me that it works on everyone, but people will justify it based on whatever they believe in. I know of one nonbeliever who said that she fell (and possibly blacked out) because I punched her, but it was clear that it was just a little push - I imagine that she had no other way to rationalize it.
Anyway, I don't mean to rant, but I think that we could up the level of discussion here a bit. Anyone can write things off by finding one contradictory theory that is consonant with what they already believe. The point of gathering ideas as to what is going on and collecting similar examples is to have a range of situations from which to draw common and reproducible aspects of the phenomenon and to discuss (in specifics) what's already out there by way of explanation. Does anyone have anything that would add to that?