Happenstance Theater brings its sophisticated, yet delightfully ridiculous, family-friendly theatrical clown circus back to the Camden Opera House, 29 Elm St. A quintet of vintage clowns become circus animals, make live music & sound effects and more in this “pocket-sized” show. FREE, thanks to COH’s Community Arts Fund. General admission. No reservations, just come – doors open 2:30 p.m. Call ahead for wheelchair and other accessible seating arrangements (236-3154). FMI: camdenoperahouse.com.