Having a hypnotist come to a corporate event is a terrific experience and creates memories and laughter! My longest client is 15 years and the second one is 13 years, without any problems. This client was easy to connect with via phone/text/email and pleasant. I consulted with hypnotist agents and discussed “keeping the hypnotist a secret.” All agents unanimously agreed “Don't do it!” You can't control how the audience is going to react, e.g. (resistance, negative tension or maybe fear of the unknown.) Allow the audience to know and build excitement for the event, it will be an event to remember with an awesome outcome! Keep it safe, let everyone know. Thank you.