“With more parents working from home, nannies are spending more time out of the apartment, where their behavior can be more readily judged and photographed by spectators. Lidia*, a former nanny who spent 17 years working for families in New York and New Jersey and now consults in the child-care industry, recalls an incident last year when her friend was in the park nannying for two kids and was reported on Facebook for ignoring the children while she was “busy having a dramatic phone call.” The person on the other line was in fact her boss, the children’s mom, who’d called with the upsetting news that she’d had to take her third child to the emergency room”