1) You have to want to be hypnotized. You can prevent it if you're aware. 2) You wouldn't do something you wouldn't do any other time, like commit murder. It just feels like your inhibitions are almost nil. He suggested one guy sing Achy Breaky Heart and kid danced and everything. On second day, he taught us how to self-hypnotize and it's pretty cool. You can remember memories from years ago as if you're there again.