My sister-in-law was late picking up the kids from school.

A human trafficker seized the opportunity to deceive the nephew.
The scammer said: Little friend, I lost my stuff in the bathroom, can you help me find it?
She was trying to lure the child into the bathroom so her accomplices could make a move.
She asked three times in a row, but the nephew kept shaking his head. She got annoyed,
"Child, haven't you learned what helping others means?"
Seeing that the child was alert, the trafficker immediately changed targets.
In less than ten minutes, they tricked another child,
just as they were about to drive away, they were caught by the police.
It turned out the nephew ran to the teacher!
He confidently told the teacher that these people were bad.
The teacher was skeptical but, for safety's sake, still called the police.
Unexpectedly, they really were bad people.
The teacher asked the nephew: "How do you know they are bad?"
The nephew said: "Mom told me that if an adult asks for your help,
never ignore them, because if an adult faces difficulties they can't solve,
they will seek help from other adults, not from a child weaker than them."