Money back guarantee in theaters?

Should movies have some buyers remorse policy where the ticket holders as a payee has a right to walk out of the theatre in a prescribed amount of time let's say (30 mins) if he she feels they haven't received the services they paid for or it was misrepresented with bait and switch practices? I'm sure this will go a long way in improving the industry standard so that you don't feel robbed for having to watch a glorified polished turd.