The Canadian crew of assistance dogs is watching a live musical as part of a workout

(CNN) – When the actors of the Canadian production of "Billy Elliot: The Musical" bowed for the last time after a recent broadcast, the public did not sound, not even a frame.

A polite crowd of about a dozen future assistance dogs attended a performance given at the Stratford Festival in August as part of their training. While a silent curtain might disappoint actors, the dog's still immobility is an excellent sign for their future masters.

The event was part of a two-year training program provided by service dogs that had worked at the K-9 Country Inn, head coach Laura MacKenzie told CNN. Future assistance dogs have visited crowded zoos, subways and fairs to accustom them to unknown lights and sounds, fast movements and animated crowds that they might meet with their master, did they? she said.

In the theater, dogs are supposed to sit under the seat or snuggle up at the feet of their masters while their humans enjoy the show, she said.

They remained quiet and silent throughout the show, but some curious puppies glanced at their fur seats to capture a few minutes of the show, she said.

Ann Swerdfager of the Stratford Festival told CNN that many theater patrons bring their dogs to shows. The company was therefore "delighted" to welcome the dogs to train them.

The non-profit theater company is organizing "relaxed shows" designed for a light, sound and sound-sensitive audience – a perfect training ground for the hopes of service dogs.

A new team of canine companions will return to the theater in October for another relaxed performance and perhaps a glimpse of theatrical magic, said Swerdfager.

"The dogs were extremely well behaved," she said. "We hope that they will join us in the years to come."