Comedian, contortionist and daredevil Al Millar, 34, brings his high-energy performs his high-energy show Thursday during the Festival of the Arts. As the event's official street performer, the native Australian known as "The Human Knot" is doing his act three times a day at the festival. Photo by Jim Beckel, The Oklahoman

Comedian, contortionist and daredevil Al Millar, 34, juggles three long knives while holding a specially made blade in his mouth during his high-energy performs his high-energy show Thursday during the Festival of the Arts. As the event's official