Hi, Joe! What does your father do?
It installs security systems
What for?
Around full of robbers
They steal things from people's homes
True?
Yes, you should tell your parents
Yes you are right. Perhaps they, too, will install security system
And you have to be careful and put them near open windows
I did not think about that
You know, right now a lot of crime in cities
I think you are right. We must be careful
Yes, better to be safe than sorry