My Psychology professor who has done some amazing stuff, studied altered states of consciousness through isolation and meditation with Buddhist Monks for 6 years, culture studies of the Mojave Indians etc. had an interesting experience one of these preachers.
I don't know what it's called, I think it's called catching the holy ghost or something, but anyways... the preacher did that thing where he touches people on the forehead and they fall over and become "healed" etc. to her...
She is completely skeptic because well, she's a Dr. of Psychology, a psychoanalyst, professional in hypnosis etc. and several other related fields, BUT, she did say when the preacher touched her it completely knocked her out.
She said she didn't have some great experience, or felt changed or anything. In fact she just said it just felt like getting knocked out, which to this day she can't explain.
I thought that was pretty cool.
NOTE : She did say that it did absolutely nothing for her. Her life didn't change, it didn't give her better eyesight etc. but she did say that you can really get knocked out just by them touching you somehow.