The beauty of improv theatre is that anything can happen. Therefore, one could quite rationally deduce that at the final show for the Jewel Box’s improv troupe — the Portable Reality Show — this Saturday, it might very well be raining cats and dogs.

Now imagine, in the midst of that furry storm, a slow-motion riot breaks out which can only be resolved by a beacon fashioned in the form of Mel Gibson’s posterior dancing to a rousing acoustic guitar-driven-camp-song ballad.

Chances are, just about every theatrical situation The Portable Reality Show conjures at its finale June 30 —  which is also a donation drive for the Kitsap Humane Society — will be all that and more than the scene that was just described. These guys and gals are professionals.

Or are they just acting like professionals because of a suggestion that came from the crowd?

To find out, “You’ve gotta be there,” said Todd Erler, creative director for the Portable Reality Show.

The last chance of 2007 to see the improv troupe is the season finale which will be at 8 p.m. June 30 at the Jewel Box Theatre on the corner of Jensen and Iverson in Poulsbo. Tickets are $8 at the door, $6 for seniors. And anyone who brings an donation for the humane society will receive $2 off — a list of suggested goods is online at www.kitsaphumane.org/wishlist.php.

For a full account of the quirky, zany theatrical wit and sass that occupies the stage at a Portable Reality Show, that is much more difficult to translate into words. Let’s just say it typically evokes a bit of laughter.

Some hilarious pictures and a few one-liners are available at the group’s myspace.com page at www.myspace.com/improvrox.

Though improv doesn’t necessarily have to be comedic, it often is in the Portable Reality Show as the players push themselves to keep the show progressing, and in some cases driving it straight over the top.

“There’s a big trust element involved because you are exposing so much of yourself on stage,” Erler said. “You don’t have a script to hide behind.”

For those unfamiliar with the improvisational form of theater, an improv group, typically a small ensemble, will take suggestions from the audience to create the setting and possibly characters of a particular scene. And from there, the actors develop the story, the dialogue and the movement as they go.

The absence of structure equals an empty freedom, which in turn offers opportunity that typically turns into some sort of laughing matter.

The Portable Reality Show deals with topics ranging from current events to Gibson’s behind and everything in between, Erler said, but with each actor hailing from the North End, the cast also displays the quirks and nuances of North Kitsap in an outrageous fashion.

“People enjoy theater because it’s heightened reality,” Erler said. “In improv, you have people on stage doing things you would never do in real life.”

However, those actions are sometimes being carried out in everyday situations.

“Sometimes the more mundane the better,” Erler continued. “Sometimes the most simple suggestion from the audience can allow us to get really creative.”

The Portable Reality Show, coming to the close of its first year in existence, is made up a variety college-educated creative personalities with day jobs like school teachers, bond lawyers and soccer coaches. It’s oldest member is 62, it’s youngest, 23, each with a deft ability to ad lib.