I went to a 60 person birthday party dinner party tonight and they brought in a hypnotist as a guest. 8 guests went up as volunteers, including me. I was 'tapped out' when I started giggling and opened my eyes. I couldn't get into it. But those up there seemed to either really get into it to please the crowd or it was working. My wife was absolutely convinced that it was real (2 of her best friends were volunteers) and afterwards she talked to her friends who remembered only what the hypnotist told them to remember.
It was great entertainment and I try to have an open mind. But I'm not buying it and my wife is completely buying it. It's rare she and I see things so differently.
I should add that the host was taking pics with a 7D. There... It's camera related.