As a theatrical hypnotist, John-Ivan Palmer will make you crow like a rooster and chug like a wash machine. He will suspend a lady by her nape and Achilles tendons between two folding chairs and sledge-hammer a cinder brick on her tummy until her navel fills with grit. Simultaneously, with the other hand, he memorizes a complete issue of TIME Magazine at a glance, and is quizzed on specific pages by awestruck folks in the audience. By Tom Bradley.