
Once upon a time, there were two boys, Joe and Bob. Joe was playing on the playground and he noticed something very round. He shouted to Bob saying. "Look! I can see something round!" 
Bob hopped off the swing to come look. "Let's go see, Joe!"
When they got close to the round thing they couldn't believe it, it was a big red ball! Joe said, "Let's play!"
But Bob said, "No, that's a stupid thing to do." 
Joe was so surprised at what Bob said, he replied, "Why is it stupid?"
Bob said, "Because if we play with it, it could roll away and we won't be able to find it."
Joe thought about it, and he agreed that it was a good idea to observe the ball and not play with it. 
So they both sat back and observed the round ball from a distance, until eventually it got dark and they had to go home.
