The child wearing the helmet has interposed himself into yet another family's game of soccer to which he wasn't invited, and his long-suffering father is finally intervening.
"Billy," he calls, but the boy shakes his head, non-verbally defiant. The other family looks awkwardly anywhere else and moves their game away as Billy's father sighs, gets up, and Billy looks upset, poised to run, unable to understand why this is an issue.
"So, do we have some kind of... plan, if our kid is special needs?" she asks as we leave the park.