MURRAY — One minute they're sitting, the next they're gone. Off the couch and onto the rocking chair, into the corner of the room, anywhere but where they were.

The children move quickly, often too fast for their parents — or even the camera's lens — to catch them.

This speed, this constant flash of children, is why the Kirton house looks like it does: a veritable maze of locked doors and makeshift barricades that are designed to keep kids in, or out, of certain areas. It is why the Kirton parents can keep talking through just about anything, hardly raising their voices while 8-year-old Nephi has yet another "meltdown" as 5-year-old Sarah, aka "Tigger," bounces madly on the couch beside them.

After all, if John and Robin Kirton focused too much on these incidents, who would catch 3-year-old Ammon, lovingly referred to as "The Destroyer," before his little hand finds its way into his dirty diaper? And where, during all of this, are the older children, Bobby and Emma, or the baby, Mary?

Life with six children is tough. Life with six children with autism practically defies description.

The stress has landed the family in juvenile court, following an offhand comment from a frustrated mother, and cost John Kirton his job and the family's medical insurance. But it has also helped the Kirtons — who now market their own "Autism Bites" T-shirts — recognize the healing power of laughter.

"We use sarcastic humor to diffuse our stress," Robin Kirton said with a smile. Added husband John: "If we didn't laugh, we'd cry."

Dubious distinction

In Utah, 1 in every 133 children has autism, according to a recent study that placed Utah's rate about 12 percent higher than the national average. University of Utah researchers found that the rate is even higher for boys, at 1 in 79.

Even with such high state rates, having six children from the same family on the autism spectrum is extremely rare, said Judith Pinborough Zimmerman, Ph.D., assistant professor in the department of psychiatry at the U.

"What tends to happen is sometimes families, if they have one child with autism, they tend to stop having other children," she said. "Geneticists refer to it as stoppage."