Hypnotist Asad Mecci, left, and improv comic Colin Mochrie find that audience members steer their performances in unexpected and hilarious directions. | Photos courtesy: Hyprov I’m totally biased on ...

We've all seen it, typically on television or on stage: A hypnotist selects a few members from the audience, and with what seems to be little more than a steely stare or a few choice words, they're ...