The "Stranger Danger" concept is slowly being written-off as it created a stigma that all strangers that a child would meet could be a threat. So rather than say all strangers are bad, we make children aware of the behaviour that is bad so that the child can recognise it and react to it in a more positive and effective way. Here are a couple of puzzles with some rules that are "Stranger Danger" orientated and the third image will allow you, with your child to observe the behaviour of the adult and fill-in the appropriate response of the child. This will hopefully allow them to become aware of what your expectations of their behaviour should be when put in this situation.