This is probably the greatest concern about hypnosis and one of the biggest myths! Although stage hypnotists are often seen making people do the strangest things under hypnosis, but the truth is that deep down inside, the subjects you see are performing on stage because they want to be outrageous. The stage hypnotist can recognise the potential star performers and will select them as willing participants. They'd never waste their time trying to hypnotise a resistant subject. Rest in the knowledge that you will never do anything or accept any suggestion that is in violation of your own morals or principles.