Playground Politics: When Other Parents Don’t Step Up (The New York Times)

Of course, you’re an attentive parent, but what about the other moms and dads on the playground’s periphery who are  too entranced by their iPhone to see what their little one just did to yours – or worse, witness the entire debacle and do nothing? Just how do you deal with what author Nicole Blades refers to as the OPK – Other Person’s Kid?