Another joke

What does the title mean?
And what is the humorous point?

Thanks!

My office used to get a Japanese publication that had jokes in the back. The jokes had the rhythm of American jokes but weren't funny. They were pseudo-jokes. From that I came to the conclusion that American humor doesn't translate into Japanese.

The title misses the point. The joke wasn't that the boss couldn't get an adult to come to the phone and therefore had to talk to a child. The joke was that the child was hiding and watching all the excitement as his parents and the police tried to find him. At least, I think that's the joke.

I laughed. It was the surprise element that the kid was hiding. Cute.

The title makes no sense in relation to the joke though.