Given a first and last name, it's possible that judgmental parents who were worried about a 9 year old being at the park could file some kind of official compla

Given a first and last name, it's possible that judgmental parents who were worried about a 9 year old being at the park could file some kind of official complaint against us. Given only a first name, their only course would be to call the police if they wanted to take any kind of official action. That's decision is about giving them pause to consider: is this child playing in the park without parents nearby actually an emergency? When I call the police, and they come, will I be able to defend my decision?