Speaking of artist Jim Avignon the other day, he also does a lovely interactive trick in his live performance (as seen in Frankfurt recently). While playing his music, he interacts several times with his own comic-style background video (hitting objects, watering graves, etc.). Then he gets a spectator on stage for a winning game and asks him several times to guess under which of three hats in the video a giant, golden coin is hiding. As the video progresses and the hands move the hats quickly, the spectator chooses the wrong hat three times in a row. Too bad!
Just bad luck or magic digital cheating? You decide!