Bayesian Judo. You can have some fun with people whose anticipations get out of sync with what they believe they believe.
I was once at a dinner party, trying to explain to a man what I did for a living, when he said: "I don't believe Artificial Intelligence is possible because only God can make a soul. " At this point I must have been divinely inspired, because I instantly responded: "You mean if I can make an Artificial Intelligence, it proves your religion is false? " He said, "What? " I said, "Well, if your religion predicts that I can't possibly make an Artificial Intelligence, then, if I make an Artificial Intelligence, it means your religion is false.
Either your religion allows that it might be possible for me to build an AI; or, if I build an AI, that disproves your religion. " Centro Zen Bodai Shin. The 99 Percent - It's not about ideas. It's about making ideas happen. Brain Pickings. BuddhaNet - Worldwide Buddhist Information and Education Network.