A 12-year-old boy named Strazh hangs from the monkey bars, staring at the ground. The other kids in the park in San Francisco aren't interested in him. And he's not interested in them.
"I just like to play by myself," he says.
Strazh has autism. Today is a good day. But on most others, Strazh has meltdowns. Something frustrates him and he can't control his emotions.
"I sometimes end up screaming," he says. "And I end up yelling and screaming."