I did have one instance IRL where I kinda saw it happen. We went to a random Ihop in Duluth/alpharetta area many years ago pretty late at night. It was me and 3 cousins. Our waiter's name was "Magic Mike" and we asked why his name tag said that. He said he's a professional hypnotist and a professional magic trick performer. All of us were super skeptical of it (and still are- somewhat) So my cousin Danial, (Dan30097 on IA- kid with the black/green challenger) volunteered and the dude made him put his head down and gave him some instructions. I don't completely recall what he said, but the end result was my cousin said it felt mad relaxing and he had like a video playing in his head. Any how fast forward and the dude made like a snap or something and my cousin's head completely went limp like he fell asleep. We are not completely sure if the guy told him to play along or if he actually did that, but it was crazy.

It was a while ago, so I'm pretty fuzzy on the details, but I'm going to see if my cousin remembers.