While most 80-year-olds are working on their bucket list, Brian Dewhurst has most things crossed off his. The professional clown has been a tightrope walker, a juggler, and all-around circus act. He grew up walking on stilts, in a household where his father threw wooden daggers at his mother for a living. At 80, Brian Dewhurst will be Cirque du Soleil's oldest performer. He joins us to talk about how the circus has changed over the years, and how he still makes people laugh at 80.