About strangers
The very first and most important thing that a parent should convey to a child is that a stranger may look completely different from how a child imagines him. It is necessary to explain that a sweet grandmother and a smiling guy can be a dangerous stranger.
The rule of five "no" that a child needs to know:
• You can not talk to strangers and let them into the apartment.
• You can not enter the elevator and the entrance with a stranger.
• You can not get into a car with strangers.
• You should not accept gifts from strangers and agree to their offer to go with them.
• Do not stay outside after school, especially after dark.
A stranger may call a child by name, say that he came at the request of his mother, may invite him to watch cartoons or offer candy. But if a person is unfamiliar to a child, then he must refuse all offers and, in case of danger, shout: "I don't know him!".